The Slewiskin gold occurrence is located near the head of Slewiskin Creek, 21 kilometres southeast of Nakusp. Good logging road access is available from the east via Shannon Creek.
Quartz veins ranging in width from 2 to 30 centimetres are exposed (Assessment Report 13341) along logging roads on the Dore, Sub 1 and Sub 2 claims. Although most veins are barren of metallic minerals, two were observed to contain arsenopyrite. Samples from several of the veins yielded low gold values, the highest being 10.1 grams per tonne gold in sample 89108 (Assessment Report 13341). The hostrock is biotite hornblende quartz diorite of the Jurassic Ruby Range stock which intrudes east trending, steeply dipping clastic sedimentary and mafic volcanic rocks of the Triassic Slocan Group. Quartz veins are also present in Slocan Group strata. Potassium-argon dating of biotite from the Ruby Range stock yielded an age date of 123 million years (Geological Survey of Canada Open File 464).
Regionally, the area is underlain by a sequence of Devonian-Mississippian pelitic quartzites and pelites belonging to the Silver Creek Formation and Milford Group; Upper Triassic, Lower Jurassic carbonaceous meta-mudstone with minor calcareous quartzite and limestone belonging to the Slocan Group, and rare volcanic breccia of the Rossland Group. These have been intruded by Jurassic diorite porphyry dikes and sills, Cretaceous granite stocks and dikes and Tertiary lamprophyre dikes. The area covers a southeast- plunging, gentle anticline roughly parallel to McDonald Creek and north trending faults, possibly Tertiary, dissect the area (BIG SPRING - MINFILE 082KSW210).
Between 1983 and 1986, Tillicum Gold Mines Limited conducted soil sampling (339 samples analysed for gold and some for silver), silt sampling (269 samples analysed for gold), and magnetic and VLF-EM surveys (21 kilometres).
In 2008, an airborne electromagnetic and magnetometer geophysical survey was conducted for Kootenay Gold Inc., and Theia Resources Ltd. on the property containing the occurrence. Results correlated with orientation and placement of the Ruby Range, Meadow Mountain, and affiliated quartz diorites, and the local sill-mudstone complex (Thompson, R. (2008-12-01): Technical Report on Geology, Exploration Programs and Results from the Rosetta Stone Property with Recommendations for Further Exploration).
