Ordnance Survey

Feature types in catalogue:

Feature Catalogue

OS MasterMap Topography Layer

This feature catalogue provides definitions of real-world features that are identifiable within OS MasterMap topography layer. These features types represent grouping of real-world features, and the cartographic text may provide additional contextual information as to the nature of a particular feature. The features are uniquely described by the five classifying attributes of descriptiveGroup, descriptiveTerm, Make, physicalLevel and physicalPresence. These attributes, along with the basic feature types, are described within the catalogue.

ScopeTopographic Areas, Topographic Lines, Topographic Points, Boundary Lines, Cartographic Symbols, Cartographic Text
Field of applicationOSGB Core Topographic Data
Version number1.0p
Version date2007-11-08
Producerosgb

Feature Types


osgb:artificialSlope

Artificial slope

Definition
Manmade inclinations in the ground which are permanent features and generally over 1.0 m in height, and associated with other features such as roads, railways (including disused and dismantled features), reservoirs and sports stadia; or constructed for another specific practical purpose, eg noise reduction. Ornamental slopes are not shown. Artificial slopes of any size are captured when an administrative or electoral boundary is mered to them; or they define an antiquity feature which is represented in the data. Where the limits of slopes are co-extensive with other detail the slopes will be offset.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Landform"
descriptiveTerm "Slope"
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:benchMark

Bench Mark

Definition
A surveyed (by Ordnance Survey) mark on a building, monument or other fixed object with a known, but unmaintained height above OS datum.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "Height Control"
descriptiveTerm "Bench Mark"
make is Null
physicalLevel 1 of ( "49" , "50" )
physicalPresence is Null

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osgb:benchMarkSymbol

Bench Mark Symbol

Definition
A cartographic symbol representing the position and orientation of a bench mark. The symbol is positioned with the apex indicating the precise position of the bench mark and at right angles to the face of the detail on which the mark is placed, but may be pivoted through an angle not greater than 30 degrees to avoid obscuring essential detail.
Data example imageReal world photo
Inherits fromosgb:CartographicSymbol
Attributes
NameConstraints
descriptiveGroup "Height Control"
descriptiveTerm "Bench Mark"
make is Null
physicalLevel 1 of ( "49" , "50" )
physicalPresence is Null

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osgb:bottomOfCliff

Bottom of cliff

Definition
The alignment of the lower edge of a cliff.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Landform"
descriptiveTerm "Bottom Of Cliff"
make "Natural"
physicalLevel 1 of ( "49" , "50" )
physicalPresence "Edge / Limit"

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osgb:bottomOfSlope

Bottom of slope

Definition
The alignment of the lower edge of a slope.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Landform"
descriptiveTerm "Bottom Of Slope"
make "Manmade"
physicalLevel 1 of ( "49" , "50" )
physicalPresence "Edge / Limit"

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osgb:boulders

Boulders

Definition
An area of large (>0.2 m dia) rounded rocks (weathered or water worn) up to 20.0 m apart. The limit to areas of boulders below MHW (S), not associated with other rock features and regardless of size of area, are captured.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Boulders"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:BoundaryLine

Boundary Line

Definition
Any administrative Boundary Line.
Data example imageReal world photo
Inherits from
Attributes
NameConstraints
accuracyOfPosition
changeHistory
descriptiveGroup "Political Or Administrative"
descriptiveTerm
featureCode
fid
physicalLevel
physicalPresence
polyline
version
versionDate

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osgb:boundaryMereingSymbol

Boundary Mereing Symbol

Definition
Cartographic symbol repesenting the postion of a change in mereing of a political or administrative boundary. Mereings represent the relationship between administrative boundaries and actual physical features. For example <CS> typically means that the boundary is along the centre of a stream. Some mereings include offsets such as <0.91m RH>, this indicates a boundary offset 0.91m from the root line of the hedge.
Data example imageReal world photo
Inherits fromosgb:CartographicSymbol
Attributes
NameConstraints
descriptiveGroup "Political Or Administrative"
descriptiveTerm "Boundary Half Mereing"
make is Null
physicalLevel "50"
physicalPresence is Null

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osgb:boundaryPostOrStone

Boundary post or stone

Definition
A post or stone that is used to mark the extent of an administrative boundary. Any post which is reputed or recognised by local authorities to relate to a current administrative or electoral boundary is captured and described as appropriate.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "Political Or Administrative"
descriptiveTerm "Boundary Post Or Stone"
make is Null
physicalLevel
physicalPresence is Null

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osgb:building

Building

Definition
A permanent roofed construction. Includes permanent mobile/park homes and caravans that are self contained, occupied principally for residential purposes and have postal addresses. Garages are captured when they meet the generic specification criteria. Portable, semi-portable buildings or structures such as portakabins, caravans without postal addresses, etc. are not captured with the exception of prefabricated classrooms within school grounds expected to remain for more than 10 years. A building attached to a larger building, but of completely different construction, is treated as a separate building and captured as a separate feature with the exception of such buildings within private gardens attached to private residential dwellings when they are captured as one feature. A building attached to a larger building of the same type of construction are considered part of the larger building and captured as a single feature.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Building"
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:buildingArchway

Building Archway

Definition
Passage or arched entrances beneath a roofed construction. These are captured when the limits can be surveyed from the outside of the building or structure, are generally more than 2m in width, and can be used by vehicles.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Building"
descriptiveTerm "Archway"
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:buildingEdgeOverhanging

Building edge - Overhanging

Definition
The alignment of an overhead building edge.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Building"
descriptiveTerm "Outline"
make "Manmade"
physicalLevel "50"
physicalPresence "Overhead"

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osgb:buildingText

Building Text

Definition
Cartographic text associated with buildings.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "Buidings Or Structure"
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:buildingWallExternal

Building wall - External

Definition
The external wall of main buildings.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Building"
descriptiveTerm "Outline"
make "Manmade"
physicalLevel 1 of ( "49" , "50" )
physicalPresence "Obstructing"

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osgb:buildingWallInternal

Building wall - Internal

Definition
The alignment of an obvious internal building division.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Building"
descriptiveTerm "Division"
make "Manmade"
physicalLevel 1 of ( "49" , "50" )
physicalPresence "Obstructing"

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osgb:builtEnvironmentText

Built Environment Text

Definition
Cartographic Text associated with the built environment.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "Built Environment"
descriptiveTerm "Compound"
make "Multiple"
physicalLevel
physicalPresence is Null

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osgb:cableAlignmentOverhead

Cable alignment - Overhead

Definition
The alignment of an overhead cable e.g. electricity transmission line, ski lifts.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "General feature"
descriptiveTerm "Overhead Construction"
make is Null
physicalLevel "51"
physicalPresence is Null

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osgb:CartographicSymbol

Cartographic Symbol

Definition
Any cartographic symbol.
Data example imageReal world photo
Inherits from
Attributes
NameConstraints
changeHistory
descriptiveGroup
descriptiveTerm
featureCode
fid
orientation
physicalLevel
physicalPresence
point
referenceToFeature
theme
version
versionDate

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osgb:CartographicText

Cartographic Text

Definition
Any cartographic text.
Data example imageReal world photo
Inherits from
Attributes
NameConstraints
anchorPoint
changeHistory
descriptiveGroup
descriptiveTerm
featureCode
fid
make
physicalLevel
physicalPresence
textRendering
textString
theme
version
versionDate

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osgb:cliff

Cliff

Definition
A steep rock face, especially at the edge of the sea.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Landform"
descriptiveTerm "Cliff"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:coastalSlopes

Coastal slopes

Definition
High and steep natural slopes along the coast.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Landform"
descriptiveTerm is Null
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:coniferousTrees

Coniferous trees

Definition
An area of coniferous (cone-bearing) trees spaced at not more than 30 m apart.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Coniferous Trees"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:coppice

Coppice

Definition
An area of non-coniferous species of tree, which is either regularly or intermittently, cut to the ground, eg hazel, chestnut and willow (osiers).
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Coppice Or Osiers"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:countyBoundary

County Boundary

Definition
Alignment of a county or unitary authority boundary.
Data example imageReal world photo
Inherits fromosgb:BoundaryLine
Attributes
NameConstraints
descriptiveGroup "Political Or Administrative"
descriptiveTerm "County"
make is Null
physicalLevel "50"
physicalPresence "Boundary"

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osgb:culvert

Culvert

Definition
An entrance to a conduit that carries a water pipe or sewer under raised ground, road, track, path or railway.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "Inland Water"
descriptiveTerm "Culvert"
make "Manmade"
physicalLevel 1 of ( "49" , "50" )
physicalPresence is Null

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osgb:culvertAlignment

Culvert alignment

Definition
The alignment of a large culvert portal.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Inland Water"
descriptiveTerm "Culvert"
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:culvertSymbol

Culvert Symbol

Definition
A cartographic symbol representing the position and orientation of a culvert.
Data example imageReal world photo
Inherits fromosgb:CartographicSymbol
Attributes
NameConstraints
descriptiveGroup "Inland Water"
descriptiveTerm "Culvert"
make "Manmade"
physicalLevel 1 of ( "49" , "50" )
physicalPresence is Null

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osgb:development

Development

Definition
An area of land that is in the progress of being developed.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Unclassified"
descriptiveTerm is Null
make "Unclassified"
physicalLevel
physicalPresence is Null

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osgb:districtBoundary

District Boundary

Definition
The alignment of a district boundary.
Data example imageReal world photo
Inherits fromosgb:BoundaryLine
Attributes
NameConstraints
descriptiveGroup "Politcal Or Administrative"
descriptiveTerm "District"
make is Null
physicalLevel "50"
physicalPresence "Boundary"

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osgb:edgeOfArtificialLandform

Edge of artificial landform

Definition
The edge of an artificial landform feature.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Landform"
descriptiveTerm is Null
make "Manmade"
physicalLevel 1 of ( "49" , "50" )
physicalPresence "Edge / Limit"

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osgb:edgeOfInlandWater

Edge of inland water

Definition
The edge or alignment of an inland water feature e.g. drain, stream, river or lake.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Inland Water"
descriptiveTerm is Null
make is Null
physicalLevel 1 of ( "-1" , "49" , "50" )
physicalPresence "Edge / Limit"

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osgb:edgeOfNaturalLandform

Edge of natural landform

Definition
The edge of a natural landform feature.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Landform"
descriptiveTerm is Null
make "Natural"
physicalLevel 1 of ( "49" , "50" )
physicalPresence "Edge / Limit"

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osgb:edgeOfRoadOrTrack

Edge of road or track

Definition
The non-obstructing edge of a road or track.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Road Or Track"
descriptiveTerm "Public"
make "Manmade"
physicalLevel 1 of ( "-1" , "49" , "50" )
physicalPresence "Edge / Limit"

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osgb:electoralBoundary

Electoral Boundary

Definition
The alignment of an electoral boundary.
Data example imageReal world photo
Inherits fromosgb:BoundaryLine
Attributes
NameConstraints
descriptiveGroup "Political Or Administrative"
descriptiveTerm "Electoral"
make is Null
physicalLevel "50"
physicalPresence "Boundary"

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osgb:electricityPole

Electricity pole

Definition
An electricity pole feature.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "Structure"
descriptiveTerm "Overhead Construction"
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:footbridge

Footbridge

Definition
A raised structure for pedestrian passage across an underlying feature.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup 2 .. 2 of ( "Path" , "Structure" )
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:ford

Ford

Definition
A shallow part of a flowing water which may allow vehicular access.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup 2 .. 2 of ( "Inland Water" , "Road Or Track" )
descriptiveTerm is Null
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:foreshore

Foreshore

Definition
The area of land lying between MHW and MLW, or MHWS and MLWS in Scotland.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Tidal Water"
descriptiveTerm "Foreshore"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:foreshoreText

Foreshore Text

Definition
Cartographic text associated with the foreshore.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "Tidal Water"
descriptiveTerm "Foreshore"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:glasshouse

Glasshouse

Definition
A horticultural building constructed largely of glass. Only commercial glasshouses are captured. Greenhouses in private gardens are not captured.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Glasshouse"
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:heath

Heath

Definition
An extensive area of open land covered with heather or bilberry with very few trees or bushes.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Heath"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:historicCourse

Historic course

Definition
The alignment of the course of a historic feature.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Historic Interest"
descriptiveTerm "Course Of Heritage"
make is Null
physicalLevel "-1"
physicalPresence is Null

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osgb:historicFeature

Historic Feature

Definition
The extent of a historic feature.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Historic Interest"
descriptiveTerm is Null
make is Null
physicalLevel
physicalPresence is Null

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osgb:historicFeatureText

Historic Feature Text

Definition
Cartographic text associated with historic features.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "Historic Interest"
descriptiveTerm is Null
make is Null
physicalLevel
physicalPresence is Null

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osgb:historicStructure

Historic structure

Definition
A positioned structure of historic interest.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "Historic Interest"
descriptiveTerm "Structure"
make is Null
physicalLevel
physicalPresence is Null

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osgb:inlandWater

Inland water

Definition
An area of fresh water, the extent of which is captured at normal winter level.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Inland Water"
descriptiveTerm is Null
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:inlandWaterText

Inland Water Text

Definition
Cartographic text associated with inland water.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "Inland Water"
descriptiveTerm is Null
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:latticeTower

Lattice tower

Definition
A metal structure that houses or supports equipment e.g. lighting, wireless transmission, electricity transmission lines.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Structure"
descriptiveTerm "Pylon"
make "Manmade"
physicalLevel "51"
physicalPresence is Null

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osgb:latticeTowerEdge

Lattice tower edge

Definition
The external extent of a lattice tower.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Structure"
descriptiveTerm "Pylon"
make "Manmade"
physicalLevel "51"
physicalPresence "Edge / Limit"

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osgb:levelCrossing

Level crossing

Definition
A junction where a railway line crosses a road, captured by defining the limits of the crossing across railway land.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup 2 .. 2 of ( "Rail" , "Road Or Track" )
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:manmadeFeatureText

Manmade Feature Text

Definition
Cartographic text associated with a manmade feature e.g. Cattle Grids, groynes.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "General Feature"
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:manmadeLandformFeature

Manmade landform feature

Definition
A manmade landform feature.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "Landform"
descriptiveTerm
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:manmadeLandformText

Manmade Landform Text

Definition
Cartographic text associated with a manmade landform feature.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "Landform"
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:manmadeSurface

Manmade surface

Definition
A manmade surface area.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "General Surface"
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:manmadeSurfaceText

Manmade Surface Text

Definition
Cartographic text associated with a manmade surface.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "General Surface"
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:marsh

Marsh

Definition
An area of ground that is waterlogged throughout the year, it may include bulrushes or reeds.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Marsh Reeds Or Saltmarsh"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:meanHighWaterLine

Mean high water line

Definition
The alignment of the mean high water tide line (spring tide limit in Scotland).
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Tidal Water"
descriptiveTerm "Mean High Water (Springs)"
make "Natural"
physicalLevel 1 of ( "49" , "50" )
physicalPresence

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osgb:meanLowWaterLine

Mean low water line

Definition
The alignment of the mean low water tide line (spring tide limit in Scotland).
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Tidal Water"
descriptiveTerm "Mean Low Water (Springs)"
make "Natural"
physicalLevel 1 of ( "49" , "50" )
physicalPresence

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osgb:minorDetail

Minor detail

Definition
Line work that defines the edge of ancillary minor features e.g. alignments of non-obstructing such as pipelines at ground surface level.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup
descriptiveTerm is Null
make
physicalLevel 1 of ( "49" , "50" )
physicalPresence "Minor Detail"

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osgb:mixedNatural

Mixed natural

Definition
An area of mineral and mixed vegetation consisting of 2 or more types.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm 1 .. 4 of ( "Coniferous Trees" , "Coniferous Trees (Scattered)" , "Coppice" , "Heath" , "Marsh Reeds Or Saltmarsh" , "Nonconiferous Trees" , "Nonconiferous Trees (Scattered)" , "Orchard" , "Rough Grassland" , "Scrub" ) AND 1 .. 4 of ( "Boulders" , "Boulders (Scattered)" , "Rock" , "Rock (Scattered)" )
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:mixedVegetation

Mixed vegetation

Definition
An area of vegetation consisting of 2 or more vegetation types.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm 2 .. 5 of ( "Coniferous Trees" , "Coniferous Trees (Scattered)" , "Coppice" , "Heath" , "Marsh Reeds Or Saltmarsh" , "Nonconiferous Trees" , "Nonconiferous Trees (Scattered)" , "Orchard" , "Rough Grassland" , "Scrub" )
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:moveableStructure

Moveable structure

Definition
An area that represents the extent of a moveable structure e.g. moving greeenhouse, moveable crane.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Structure"
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence "Moveable"

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osgb:naturalLandformFeature

Natural landform feature

Definition
A natural landform feature e.g. position of caves, swallow holes and shake holes.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "Landform"
descriptiveTerm
make "Natural"
physicalLevel
physicalPresence

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osgb:naturalLandformText

Natural Landform Text

Definition
Cartographic text associated with a natural landform feature.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "Landform"
descriptiveTerm is Null
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:naturalSurface

Natural surface

Definition
Areas of natural surface with no specific vegetation classification e.g. agricultural land.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "General Surface"
descriptiveTerm is Null
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:naturalSurfaceText

Natural Surface Text

Definition
Cartographic text associated with a natural surface feature.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "General Surface"
descriptiveTerm is Null
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:nonConiferousTrees

Non coniferous trees

Definition
Area of trees that do not bear cones, spaced at not more than 30 m apart.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Nonconiferous Trees"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:nonObstructingFeature

Non obstructing feature

Definition
Alignment of permanent detail that is not an obstruction at ground level e.g. features <0.3 m high, broken hedge, baulk, broken bank, kerb (other than public road), edge of metalling (other than public road), track, broken wall, outline of elevated features, for example, overhanging roofs less than 50 m2 and gantries.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "General Feature"
descriptiveTerm is Null
make is Null
physicalLevel 1 of ( "-1" , "49" , "50" )
physicalPresence "Edge / Limit"

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osgb:obstructingFeature

Obstructing feature

Definition
Alignment or outline of permanent detail forming an obstruction greater than 0.3 m above ground level e.g. hedge, fence, bank, wall, minor building outline.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "General Feature"
descriptiveTerm is Null
make is Null
physicalLevel 1 of ( "-1" , "49" , "50" )
physicalPresence "Obstructing"

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osgb:orchard

Orchard

Definition
Cultivated fruit trees, e.g. walnut, apple. Only commercial orchards are captured.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Orchard"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:overheadFeatureText

Overhead Feature Text

Definition
Cartographic text associated with overhead cable alignments e.g. electricity transmission lines.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "General Feature"
descriptiveTerm is Null
make is Null
physicalLevel "51"
physicalPresence is Null

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osgb:overheadStructure

Overhead structure

Definition
An overhead manmade structure.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Structure"
descriptiveTerm "Overhead Construction"
make "Manmade"
physicalLevel
physicalPresence "Moveable"

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osgb:parishBoundary

Parish Boundary

Definition
The alignment of a parish boundary.
Data example imageReal world photo
Inherits fromosgb:BoundaryLine
Attributes
NameConstraints
descriptiveGroup "Political Or Administrative"
descriptiveTerm "Parish"
make is Null
physicalLevel "50"
physicalPresence "Boundary"

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osgb:parliamentaryBoundary

Parliamentary Boundary

Definition
The alignment of a parliamentary boundary.
Data example imageReal world photo
Inherits fromosgb:BoundaryLine
Attributes
NameConstraints
descriptiveGroup "Political Or Administrative"
descriptiveTerm "Parliamentary"
make is Null
physicalLevel "50"
physicalPresence "Boundary"

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osgb:path

Path

Definition
A strip of ground specifically for pedestrian or bicycle use that may be a made surface or ground worn down by the passage of people on foot or bicycle.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Path"
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:pathAlignmentUnmade

Path alignment - Unmade

Definition
The alignment of an unmade path.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Path"
descriptiveTerm "Unmade Path Alignment"
make is Null
physicalLevel 1 of ( "49" , "50" )
physicalPresence "Edge / Limit"

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osgb:pavement

Pavement

Definition
A manmade area adjacent to a road. Generally for pedestrians but can include central reservations on motorways and dual-carriageways.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Roadside"
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:politicalOrAdministrativeText

Political or Administrative Text

Definition
Cartographic text associated with a political or administrative feature.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "Political Or Administrative"
descriptiveTerm is Null
make is Null
physicalLevel
physicalPresence is Null

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osgb:polygonClosingLine

Polygon closing line

Definition
Lines added to close off areas other than inferred property extents.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Network Or Polygon Closing Geometry"
descriptiveTerm "Polygon Closing Link"
make is Null
physicalLevel "50"
physicalPresence "Closing"

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osgb:positionedBoulder

Positioned boulder

Definition
An individual significant boulder.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "General Feature"
descriptiveTerm "Positioned Boulder"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:positionedConiferousTree

Positioned coniferous tree

Definition
An individual significant coniferous tree.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "General Feature"
descriptiveTerm "Positioned Coniferous Tree"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:positionedNonConiferousTree

Positioned Non coniferous tree

Definition
An individual significant non-coniferous tree.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "General feature"
descriptiveTerm "Positioned Nonconiferous Tree"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:privateGarden

Private garden

Definition
An area containing multiple surface types representing private residential gardens.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "General Surface"
descriptiveTerm "Multi Surface"
make "Multiple"
physicalLevel
physicalPresence is Null

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osgb:propertyClosingLine

Property closing line

Definition
Lines closing off inferred property extents.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Network Or Polygon Closing Geometry"
descriptiveTerm "Inferred Property Closing Link"
make is Null
physicalLevel "50"
physicalPresence "Closing"

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osgb:railStructure

Rail structure

Definition
A point structure feature adjacent and related to rail.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "Rail"
descriptiveTerm "Structure"
make
physicalLevel
physicalPresence

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osgb:railStructureExtent

Rail structure extent

Definition
An area structure feature adjacent and related to rail.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup 2 .. 2 of ( "Rail" , "Structure" )
descriptiveTerm
make "Manmade"
physicalLevel
physicalPresence

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osgb:railwayNarrowGaugeTrack

Railway - Narrow gauge track

Definition
Alignment of the track of a narrow gauge railway.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Rail"
descriptiveTerm "Narrow Gauge"
make is Null
physicalLevel "50"
physicalPresence "Network"

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osgb:railwayStandardGaugeRail

Railway - Standard gauge rail

Definition
Alignment of the rails of a standard gauge railway.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Rail"
descriptiveTerm "Standard Gauge Track"
make is Null
physicalLevel "50"
physicalPresence is Null

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osgb:railwayBuffer

Railway buffer

Definition
The alignment of railway buffer features.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Rail"
descriptiveTerm "Buffer"
make "Manmade"
physicalLevel 1 of ( "49" , "50" )
physicalPresence is Null

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osgb:railwayBuilding

Railway building

Definition
Buildings adjacent to rail track and considered as being managed as rail property.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup 2 .. 2 of ( "Building" , "Rail" )
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:railwayLandMade

Railway land - manmade

Definition
A manmade surface adjacent to rail track and considered as being managed as rail property.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Rail"
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:railwayLandNatural

Railway land - natural

Definition
A natural surface adjacent to rail track and considered as being managed as rail property.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Rail"
descriptiveTerm is Null
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:railwaySwitchSymbol

Railway Switch Symbol

Definition
Cartographic symbol representing the position of a railway track switch point.
Data example imageReal world photo
Inherits fromosgb:CartographicSymbol
Attributes
NameConstraints
descriptiveGroup "Rail"
descriptiveTerm "Switch"
make is Null
physicalLevel 1 of ( "49" , "50" )
physicalPresence is Null

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osgb:railwayText

Railway Text

Definition
Cartographic text associated with railway features.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "Rail"
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:reeds

Reeds

Definition
A area of freshwater reeds.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup 2 .. 2 of ( "Inland Water" , "Natural Environment" )
descriptiveTerm "Marsh Reeds Or Saltmarsh"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:ridgeOrRockLine

Ridge or rock line

Definition
The alignment of a distinctive ridge or rock line.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "Landform"
descriptiveTerm "Ridge Or Rock Line"
make "Natural"
physicalLevel "50"
physicalPresence is Null

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osgb:road

Road

Definition
A metalled way for vehicles.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Road Or Track"
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:roadFlowDirectionSymbol

Road Flow Direction Symbol

Definition
Cartographic symbol indicating the direction of vehicle flow. Only used in very limited situations to clarify ingress and egress points e.g. access to underground car parks.
Data example imageReal world photo
Inherits fromosgb:CartographicSymbol
Attributes
NameConstraints
descriptiveGroup "Road Or Track"
descriptiveTerm "Road Related Flow"
make is Null
physicalLevel "50"
physicalPresence is Null

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osgb:roadText

Road Text

Definition
Cartographic text associated with road features.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "Road Or Track"
descriptiveTerm "Road Name Or Classification"
make is Null
physicalLevel
physicalPresence is Null

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osgb:roadsideBuilding

Roadside building

Definition
A building adjacent and related to a road.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup 2 .. 2 of ( "Building" , "Road Or Track" )
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:roadsideStructure

Roadside structure

Definition
A point structure feature adjacent a road.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "Roadside"
descriptiveTerm "Structure"
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:roadsideStructureExtent

Roadside structure extent

Definition
An area structure feature adjacent a road.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup 2 .. 2 of ( "Road Or Track" , "Structure" )
descriptiveTerm is Null
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:roadsideText

Roadside Text

Definition
Cartographic text associated with roadside features.
Data example imageReal world photo
Inherits fromosgb:CartographicText
Attributes
NameConstraints
descriptiveGroup "Roadside"
descriptiveTerm is Null
make is Null
physicalLevel
physicalPresence is Null

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osgb:rock

Rock

Definition
An area of exposed bedrock of >25% of the area.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Rock"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:roughGrass

Rough grass

Definition
Areas of bracken and uncultivated grassland, often tufted with a 'hummocky' appearance, and normally found on the higher parts of hills, mountains and downland.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Rough Grassland"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:scatteredBoulders

Scattered boulders

Definition
An area of large (>0.2 m dia) rounded rocks (weathered or water worn) more than 20.0 m apart.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Boulders (Scattered)"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:scatteredConiferousTrees

Scattered coniferous trees

Definition
An area of coniferous (cone-bearing) trees spaced at more than 30 m apart.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Coniferous Trees (Scattered)"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:scatteredNonConiferousTrees

Scattered non-coniferous trees

Definition
Area of trees that do not bear cones, spaced at more than 30 m apart.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Nonconiferous Trees (Scattered)"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:scatteredRock

Scattered rock

Definition
An area of scattered exposed bedrock (<25% of area).
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Rock (Scattered)"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:scree

Scree

Definition
A mass of loose stones on the steep side of a mountain (slopes of angular rock debris).
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Scree"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:scrub

Scrub

Definition
Area of shrubs and bushes including rhododendrons, brambles, gorse and broom.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup "Natural Environment"
descriptiveTerm "Scrub"
make "Natural"
physicalLevel
physicalPresence is Null

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osgb:siteOfHeritage

Site of Heritage

Definition
Cartographic symbol representing the site of historic interest.
Data example imageReal world photo
Inherits fromosgb:CartographicSymbol
Attributes
NameConstraints
descriptiveGroup "Historic Interest"
descriptiveTerm "Site Of Heritage"
make is Null
physicalLevel "50"
physicalPresence "Indicator"

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osgb:spotHeight

Spot height

Definition
A non-physical vertical control feature.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "Terrain And Height"
descriptiveTerm "Spot Height"
make is Null
physicalLevel
physicalPresence is Null

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osgb:stepEdge

Step edge

Definition
The alignment of a step edge.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "General Surface"
descriptiveTerm "Step"
make "Manmade"
physicalLevel "50"
physicalPresence is Null

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osgb:steps

Steps

Definition
A made area using a series of raised areas which links surfaces at different heights.
Data example imageReal world photo
Inherits fromosgb:TopographicArea
Attributes
NameConstraints
descriptiveGroup 1 of ( "Path" , "General Surface" )
descriptiveTerm "Step"
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:stepsLimit

Steps limit

Definition
The top or bottom edge of an area of steps.
Data example imageReal world photo
Inherits fromosgb:TopographicLine
Attributes
NameConstraints
descriptiveGroup "General Surface"
descriptiveTerm "Step"
make "Manmade"
physicalLevel "50"
physicalPresence "Edge / Limit"

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osgb:structure

Structure

Definition
A point manmade structure feature e.g. letter boxes, telephone call boxes.
Data example imageReal world photo
Inherits fromosgb:TopographicPoint
Attributes
NameConstraints
descriptiveGroup "Structure"
descriptiveTerm 1 of ( , "Structure" )
make "Manmade"
physicalLevel
physicalPresence is Null

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osgb:structureExtent

Structure extent

Definition
The extent of a structure area feature.
Data example image