CalTopo
communityBackcountry mapping tool — topo maps, slope analysis, and trip planning for search and rescue
This is a community-generated spec
This /ai spec was auto-generated by an AI agent, not by the site owner. It may be incomplete or inaccurate.
GET
/api/mapsGet available map layers
Returns
layers[] with id, name, type, coverage, resolutionPOST
/api/mapsCreate custom map
Parameters
zoomintegerrequiredcenterstringrequired— lnglayersstring[]optionalmarkersarrayoptionalReturns
map_id, url, layers[], boundsGET
/api/slopeGet slope angle analysis
Parameters
latnumberrequiredlngnumberrequiredradiusintegeroptionalReturns
slope_angle, aspect, elevation, avalanche_terrain_exposure