The Inca occurrence is located northwest of Wensley Creek, at an elevation of 1000 metres and approximately 6 kilometres east of Nakusp.
Regionally, the area is underlain by basaltic volcanic rocks of the Carboniferous to Permian Kaslo Group and limestone, slate, siltstone and argillite of the Triassic Slocan Group. These have been intruded by quartz monzonite intrusives of the Jurassic Kuskanax Batholith.
Locally, quartz stock works with pyrite are associated with a quartz feldspar porphyry dike cutting rusty gossanous mafic schists and volcanics.
In 1983, two grab samples, from two separate zones approximately 300 metres apart, assayed 2.44 and 1.60 grams per tonne gold, respectively (Assessment Report 11744).
In 1983, Primont Resources completed a program of geochemical sampling and geological mapping on the area as the Inca claims.