The Sapphire and Champion claims are located near the Slocan Highway, 6.5 kilometres north of Slocan. The claims, Lots 10813 and 10811, respectively, were Crown-granted in 1912 to D.A. MacLachlan.
The hostrock at the Sapphire mine is a phase of the Nelson granite displaying large potassium feldspar phenocrysts, which has been silicified and cut by quartz veinlets near the main quartz vein. The main vein is made of massive white quartz cut by small fissures infilled with silver mineralization as well as other minerals.
Recorded production in 1903 and 1904 was 37 tonnes, yielding 52 284 grams of silver and 1026 grams of gold.
In 2012, North Bay Resources Inc. completed a three day prospecting program on the Coronation Gold property, which encompasses the old Sapphire and Champion claims. Two rock samples representing mineralized vein material were assayed at 25.9 grams per tonne gold and 2590 grams per tonne silver (Sample C-07)and 17.45 grams per tonne gold and 479 grams per tonne silver (Sample C-08; Assessment Report 33360).