Located in the Rock Creek Valley northeast of Mowitch Creek. Starlight Range, on the border of Jasper & Willmore parks, Alberta Major headwater Athabasca River.
Latitude 53; 26 Longitude 118; 35, Topo map 83E/07
Named in 1934. A quoin is a large stone at a corner of a building. The mountain forms a cornerstone of the Starlight Range. Official name.