1 boulder on 1 wall, V4. In Colorado. When the rock grips hour by hour, topos and people to climb with, in the app.
From V4 to V4. Half are V4.
Each climb counts at its grade; ungraded ones are left out. In the app you can switch to French, UIAA, British or Font grades.
Mostly south-facing: sun for much of the day. A winter crag; in summer, go early or late.
Estimated best season: March–May · September–October. Worked out from each wall's aspect and the latitude; the app fine-tunes it with what climbers log.
Friction ScoreHow the rock grips, hour by hour and wall by wall. In the app, for every crag on the map. See it in the app →ILLUSTRATIVE EXAMPLE