osm.wiki/User:4b3eff

Mostly adding climbing data:

• osm.wiki/Climbing
• https://taginfo.openstreetmap.org/search?q=climbing#keys

osm.wiki/USGS_3D_Elevation_Program#Using_the_USGS_3DEP_Digital_Elevation_Model https://elevation.nationalmap.gov/arcgis/services/3DEPElevation/ImageServer/WMSServer?FORMAT=image/png32&TRANSPARENT=TRUE&VERSION=1.3.0&SERVICE=WMS&REQUEST=GetMap&LAYERS=3DEPElevation:Hillshade Multidirectional&STYLES=&CRS={proj}&WIDTH={width}&HEIGHT={height}&BBOX={bbox}

osm.wiki/Proposal:Tag:footway%3Dlink