|natural = cliff|
|A vertical or almost vertical natural drop in terrain, usually with a bare rock surface|
|Used on these elements|
|Tools for this tag|
Ais a vertical or almost vertical natural drop in terrain topography as it occurs for example in form of coastal cliffs or escarpments. The face of the cliff usually consists of bare solid rock but can occasionally also consist of clay, compacted sand, ice or other solid materials.
How to map
To map a cliff draw a way along the edge of the cliff and tag it natural=cliff. The direction of the way should be so that the top of the cliff is on the left side of the way direction and the bottom on the right side. If the cliff is not perfectly vertical the way should be located on the top edge. Circular cliffs like craters or escarpment outliers can be drawn as closed ways.
When not to use
natural=cliff should not be used for ridges, i.e. crests where there is a significant drop in terrain to both sides and neither of them is close to vertical. Use natural=ridge or natural=arete instead. Also do not use natural=cliff just for mapping an inclined bare rock surface, use natural=bare_rock instead.
Renderers and editors might indicate the lower side of the cliff (the right side of the OSM way) with small triangles pointing downwards.
Related natural features
- natural=bare_rock - areas of visible solid bedrock
- natural=rock - isolated, notable rock features connected to the bedrock, mainly single node element
- natural=stone - large boulders and rocks (glacial erratics or rock fall) not attached to the bedrock, mainly single node element
- natural=scree - loose angular rock fragments
- natural=glacier - glaciers
- natural=arete and natural=ridge - for a mountain stretch with descents to both sides