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Public-images-osm logo.svg natural = crevasse
A large crack in a glacier Show/edit corresponding data item.
Group: natural
Used on these elements
should not be used on nodesmay be used on waysmay be used on areas (and multipolygon relations)should not be used on relations (except multipolygon relations)
See also
Status: in usePage for proposal

A crevasse is a deep crack in the ice of a glacier that forms due to stresses in the ice and constitutes an obstacle and a hazard to hikers and mountaineers. See Crevasse on Wikipedia for more information.

Although the location of individual crevasses can change rather quickly on a fast moving glacier the general area and pattern in which crevasses occur is usually quite constant making mapping of them useful even if it is not fully up-to-date.

natural=crevasse is the most widely used tag to map crevasses.

How to map

Within the area of a glacier mapped as natural=glacier crevasses can be mapped as either lines by drawing a way along them or as areas by drawing a closed way or a Relation:multipolygon covering the area of the crevasse and tagging it with natural=crevasse.


Currently not rendered.

Tag use

While the total number is quite high this is used only on a few spots worldwide, see ​https://taginfo.openstreetmap.org/tags/?key=natural&value=crevasse&filter=all#map.

See for example - ​https://overpass-turbo.eu/s/1czA There are 2432 ways on this little glacier alone. And with this detailed mapping it is probably highly outdated anyway[1].

See also