The Geo occurrence is located on the lower north slope of Selish Mountain, approximately 4 kilometres west of the south end of Gwen Lake.
The area lies in the western belt of the Upper Triassic Nicola Group. The slopes of Selish Mountain are underlain by generally green, massive to layered dacitic flows, breccias and local tuffs, interbedded with massive grey fossiliferous limestone and minor greywacke. Bedding strikes east and dips moderately to the south. Nicola Group rocks exhibit widespread weak chlorite-epidote alteration and occasional quartz veining. A large dioritic stock and isolated small plugs intrude the volcanics. A 1.5 metre wide fault zone strikes 125 degrees and dips 75 degrees north.
In the northeast portion of the property, jasper and silica with minor chalcopyrite and galena occur along fractures which parallel the main fault zone. To the southwest the intrusive contact is marked by potassium feldspar and more intense chlorite-epidote alteration. Chalcopyrite and pyrite comprise the minimal copper mineralization.
Work History
In 1966, Cleveland Mining and Smelting Co. Ltd. completed a program of soil sampling on the area as the Bruce and Pick claims. The following year, a program of soil sampling was completed on the area immediately east of the occurrence as the CM claims.
In 1970, Craigmont Mines Ltd. completed a program of geological mapping, soil sampling and a ground magnetic survey on the area as the Geo claims.
In 1981, Chevron Standard completed a soil sampling program on the area as the CS 1 and BL 1 claims. In 1983, JTM Services completed a ground electromagnetic survey on the claims.
In 2019, Rich River Exploration Ltd. completed a program rock and silt sampling on the area as the Canadian Comstock property.