The Silver Nugget occurrence is located at 1981 metres elevation, in the headwaters of Aylwin Creek. Silverton, British Columbia lies 8.25 kilometres to the north.

The Silver Nugget occurrence is located within but near the boundary of an outlier of Lower Jurassic Rossland Group metavolcanics and Early Jurassic subvolcanic equivalents. Lithologies comprising the Rossland Group at the Silver Nugget occurrence include pyritic quartzite, augite porphyry, greenstone and argillite. These rocks have been tentatively correlated with the Elise Formation. Early Jurassic subvolcanic equivalents include quartz latite porphyry and feldspar porphyry. These hostrocks are enclosed by potassium feldspar porphyritic granite of the Middle Jurassic Nelson intrusions. For a more detailed description of the geology of this outlier refer to the Willa occurrence (082FNW071).

The occurrence is composed of a quartz-filled fissure lode hosting pyrite and one or more silver-bearing sulphides. These may include tetrahedrite, pyrargyrite, native silver, argentite and stephanite. The lode has a strike of 063 degrees and dips 55 degrees to the southeast.

The lode has been explored and developed by two short adits. One adit was a crosscut 24 metres long, from which drifting occurred. Production records indicate 1 tonne of production in 1907 from which 7060 grams of silver were recovered. However, 1 tonne of production is also reported in 1908. The ore in both years averaged 7783 grams per tonne silver (Geological Survey of Canada Memoir 184, page 124).