|natural = stone|
|A single notable freestanding rock, which may differ from the composition of the terrain it lies in.|
|Used on these elements|
|Status: in use|
|Tools for this tag|
A large (whatever that might mean) natural boulder or rock fragment that is not attached to the underlying terrain and arrived in its position by natural means, such as weathering, flooding or glaciation.
A glacial erratic is a piece of rock that differs from the size and type of rock native to the area in which it rests (fromon Wikipedia) carried there by glaciation.
How to map
To describe it further use the following additional tags:
- name=* to tag the name of the stone. I.e. "Doane Rock" in Eastham, Massachusetts.
- protected=yes - to tag cultural heritage management.
- website=* the url of a site with specific information to this rock.
- width=n - to tag that the stone has width of n meters
- height=m - to tag that the stone has height of m meters
Some people have started to subtag stones with the tag stone_type=* (a total of 1485 in Sept 2019), with these values:
- conciliation_cross (1353)
- coat_of_arms (74)
- khachkar (23)
- ruhstein (19)
- grooves (6)
- place_of_worship (2)
- glacial_erratic (2)
Fewer have used the stone=* tag, but because others use the same stone-tag to refine material=stone, the situation is less clear. By Sept 2019, most values (on a total of only 122 stone=* objects) are describing the material of the stone (see also the much more used tag material=* for this).
suggested by User:Chrisana13
- historic=archaeological_site - A place in which evidence of past activity is preserved
- historic=memorial + memorial=stone - Specifies a memorial as a stone
- historic=stone - A stone shaped or placed by man with historical value.
- marker=stone - A stone marker is a natural support on which useful information is directly etched or painted
- natural=rock - A notable isolated rock or group of rocks attached to the underlying bedrock.
- Proposed features/rock, now changed to Proposed features/bare_rock to tag land_cover
- OpenSeaMap/Rocks for rocks/stones at sea.