The Red Mountain claim, held by A. Ainslie and D. McCuaige, lies on the north side of Virgil Creek (Miller Creek), near Mount Revell.
The area is underlain by an east-west layer of quartzitic siltstone of the Upper Triassic Slocan Group and granites of the Middle Jurassic Nelson Batholith. Pyrritized sediments occur as inclusions in the granites. Oxidized minerals in quartz stringers carry values in silver and zinc. A sample accross 15 centimetres ran 17,623 grams per tonne silver and 1.37 grams per tonne gold. Another sample ran 1389 grams per tonne silver and 6 per cent zinc (Annual Report 1919, page 132).