The Sit 1 West showing is located 1.2 kilometres southeast of Asitka Peak and 3 kilometres east-northeast of Sustut Lake.

Locally the area is underlain by the Upper Triassic Savage Mountain Formation (Takla Group). This formation consists of greenish to red-brown intermediate porphyritic flows, augite porphyry basalt flow, chloritic tuffs and agglomerates, and minor intercalated epiclastic sediments. These stratified rocks are intruded by the Early Jurassic Asitka Peak stock. The stock ranges from hornblende and/or biotite granodiorite to quartz diorite. These rocks are cut by mafic dikes, generally less than 3 metres thick, which are finely feldspar porphyritic.

Geological mapping and prospecting were performed in 1991 by International Corona Corporation on their Sit 1 to Sit 7 claims. Corona re-examined previously discovered mineral occurrences, mostly from the 1974 work of Nomad Mines on their lapsed Asitka claim block (Assessment Report 22018). A large area between Asitka Lake, on the south, and Johanson Lake, on the north, was prospected by Corona, resulting in the discovery of several new occurrences. Work included 25 man-days in the field, with 100 rock and 24 moss mat samples collected.

In 1991, International Corona Corp. (Corona) prospected a mountain peak located 1.3 kilometres southeast from Asitika Peak. Corona collected 5 rock samples, 2 north of the peak and 3 northwest of the peak. One sample (64613) located north of the peak graded 1.08 per cent copper and 5.8 grams per tonne silver (no gold) (Assessment Report 22018). Sample 64613 was described as a 1.2-metre chip sample of volcanic agglomerate with quartz-carbonate stringers containing chalcocite and malachite.

Three grab samples (64610-64612) taken over 200 metres, starting just north of the mountain peak, yielded 0.19, 0.55 and 0.78 per cent copper. Silver values were similar to that of sample 64613. Two samples were described as epidote, chalcocite, malachite in and along an andesite sill; the third sample, with the weakest copper, consisted of quartz-carbonate veins and epidote stringers (Geochemical Map (showing samples and assays), Assessment Report 22018).

See A-4 (094D 087) for related geological information and work history.