The property is located on the east shore of Kootenay Lake in the vicinity of Indian Creek, less than 1.5 kilometres north of Riondel.

Galena and sphalerite veins occur in limestone within the Middle Cambrian to Middle Devonian Index Formation, Lardeau Group. In 1918 and 1920 a total of 85 tonnes was mined from which 51,755 grams of silver was produced.

The Tam O'Shanter claim (Lot 401) was Crown-granted to the Montreal-Kootenay Mining Co. in 1896. The company drove a 43 metre long adit from the waters edge on a 0.6 metre wide vein sparsely mineralized with iron and galena. The company ceased operations in about 1899. Leasers worked the property intermittently during the period 1918-20; a 15 metre raise was driven and some ore shipped.

Pacific Silver Mines & Oils Ltd. acquired the property, consisting of 36 claims, in 1965. The old workings were rehabilitated and a geophysical survey was carried out. The survey detected a series of five anomalous zones on which diamond drilling is planned.