The C showing is located on the south slopes of Sproat Mountain adjacent to the Squamish-Pemberton highway. The area is underlain by quartz diorite of the Jurassic to Tertiary Coast Plutonic Complex.
Zones that have been propylitically altered and silicified contain quartz veins with pyrite and rare chalcopyrite or molybdenite. A four-centimetre wide quartz vein assayed 2.95 grams per tonne gold and 1.37 grams per tonne silver (Assessment Report 17063).