The Yeti showing is situated 0.7 to 1.3 kilometres east-southeast of the confluence of Hedley and McNulty creeks, 4 kilometres north-northeast of Hedley.

This area on the east bank of Hedley Creek is underlain by a sequence of interbedded argillite, siltstone, quartzite, chert and limestone of the Upper Triassic Stemwinder Mountain Formation (Nicola Group), which is intruded to the north by the Middle Jurassic Osprey Lake batholith. This intrusion is comprised of granite to granodiorite with a marginal phase of hornblende diorite to quartz diorite along the west-striking intrusive-sediment contact. A zone of silicification extends southward into the sediments. Local skarn alteration is also evident in the sediments at or near the intrusion.

The Osprey Lake batholith in this vicinity contains disseminated and stringer pyrite and pyrrhotite, with traces of chalcopyrite, and the occasional quartz vein. A grab sample from a quartz vein in granodiorite, with galena, chalcopyrite and arsenopyrite, assayed 0.2 gram per tonne gold, 147.5 grams per tonne silver, 0.195 per cent lead and 0.041 per cent arsenic (Assessment Report 15087, sample ZR 50). A second sample of gouge material from the margin of the vein contained 0.3 gram per tonne gold, 6.5 grams per tonne silver and 0.374 per cent arsenic (sample ZR 54).

The sediments south of the intrusion are variably mineralized with pyrite and pyrrhotite, and traces of arsenopyrite and chalcopyrite. Pyrite and pyrrhotite occur as disseminations, streaks and fracture coatings, generally in quantities of up to 5 per cent each, locally up to 30 percent. A grab sample of pale green-grey chert, located 460 metres southeast of the sampled quartz vein, with up to 3 per cent combined disseminated pyrrhotite and pyrite, assayed 4.15 grams per tonne gold (Assessment Report 17430, page 12, sample 822).