The Silver 1 showing is located on the east side of Cottonwood Creek about 5 kilometres south of Nelson.

The area is underlain by intermediate volcanics and volcaniclastics of the Lower Jurassic Elise Formation (units Je1 and Je10), Rossland Group (Open File 1989-11). The stratigraphy is intrud granite sills related to Middle to Late Jurassic granites and granodiorites of the Nelson Intrusions. A southerly extension of the Nelson batholith occurs to the east.

The showing consists of galena, sphalerite, pyrite and sparse chalcopyrite occurring along planes of schistosity. The mineralized zone has been exposed for a strike length of about 65 metres with a variable width of 1 to 3 metres. The zone is hosted in biotite schist. Reports indicate that some sulphide mineralization is also associated with the contact alteration zone of a 1-metre-thick granitic dyke.

Assays are erratic and tonnage potential is estimated to be very low. Values of 0.5 to 5.65 per cent lead, 4 to 13.45 per cent zinc and 13 to 497.2 grams per tonne of silver have been reported. A grab sample, taken in 1979 across 3 metres, from a trench 9 metres south of the main shaft, assayed 57.93 grams per tonne silver, 1.85 per cent lead and 7.36 per cent zinc (Assessment Report 7377).