The Sit 4 area is underlain by the Upper Triassic Savage Mountain Formation (Takla Group). The formation consists of augite porphyry basalt flow, breccia, pillow breccia, tuff and interbedded bladed feldspar porphyry. The area just north of Asitka Lake and the area east of Asitika Peak are intruded by Early Jurassic Asitka Peak quartz diorite stocks. The Sit 4 occurrence is located at or near to the regionally mapped contact of the Asitka Lake stock.

Two samples were high in copper. Grab sample 64637 was described as “malachite, epidote with 1- to 2-centimetre quartz veins”; this sample graded 1.49 per cent copper and 8.8 grams per tonne silver (no gold) (Assessment Report 22018). Sample 64638 (a 2-metre chip sample) was described as an “altered maroon agglomerate, minor quartz flooding, major epidote, malachite chalcocite”. This sample graded 0.225 per cent copper and 11.8 grams per tonne silver over 2 metres (Assessment Report 22018).

See A4 (094D 087) for related geological and work history details.