The Nil Desperandum occurrence is located 500 metres south of Fish Lake and 1.25 kilometres east-northeast of the former Lucky Jim mine (082KSW023). Kaslo, British Columbia lies roughly 28 kilometres to the southeast.
A couple of short adits, 46 vertical metres apart, were driven on the Nil Desperandum Reverted Crown grant. These explored at depth several irregular vein quartz outcrops in slates of the Triassic Slocan Group. Numerous quartz porphyry dikes and sills crosscut Slocan strata.
The quartz is stained with copper carbonates and is sparsely mineralized with pyrite, galena, sphalerite and a little tetrahedrite.