The JM showing is situated atop a ridge separating Bearpaw Lake to the west from the valley of McNulty Creek to the east, 14 kilometres north-northwest of Hedley.

The showing occurs in a roof pendant of Upper Triassic Nicola Group volcanics within the Early Jurassic Bromley batholith. The pendant trends northeast for 5 kilometres with widths of up to 2.5 kilometres, and is comprised of thinly-bedded andesite ash tuffs and massive to thickly-bedded andesite crystal lithic tuffs (Whistle Creek Formation?).

A 1 to 2-metre wide fracture zone strikes west for 200 metres, cutting biotite hornfelsed tuffs, just southwest of the contact with pink, medium-grained biotite granodiorite of the Bromley batholith. This northwest trending intrusive-volcanic contact zone is generally enriched in sulphides. The fracture zone in particular contains abundant disseminated pyrrhotite and pyrite, minor disseminated chalcopyrite and traces of arsenopyrite and bornite. Samples taken from the zone assayed trace to 0.62 gram per tonne gold and 0.7 to 2.7 grams per tonne silver (Assessment Report 14289, page 6).

In this generally vicinity, within the northern part of the roof pendant, fine-grained andesite is reported to be mineralized with minor disseminated and stringer pyrite and magnetite, local disseminated chalcopyrite and occasional molybdenite along fractures.