The Mica Mountain prospect is located about 65 kilometres north-northwest of Clearwater, 3 kilometres west of Wells Gray Provincial Park. During 1924-1926, General Holdings Company of Edmonton completed reconnaissance and development work on a number of muscovite-bearing pegmatites.

A 60-metre wide zone of irregular pods and dikes of pegmatite in quartz mica schist of the Snowshoe Group has been traced northward across the summit of Mica Mountain. Individual pods and dikes range from 1.5 to 9 metres in width. The pegmatite varies considerably in composition, with quartz and feldspar predominating, accompanied by subordinate muscovite mica. The muscovite occurs as irregularly distributed, well-developed "books", up to 15 centimetres in length. The mica tends to be more abundant near surface. Early work (1931) indicated that the mica grades up to 25 to 30 per cent.