The Sit 1 occurrence is 1.7 kilometres metres southwest of Asitka Peak. The showing was located in 1991 by International Corona on their Sit 1 claim (Assessment Report 22018).

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.

Corona collected 5 high copper samples near the Sit 1 MINFILE showing plot. Chip sample 64616 yielded the highest copper value of 6 nearby samples at 2.96 per cent over 0.7 metre (along with 14 grams per tonne silver and 29 ppb gold). Other samples yielded 1.84 per cent copper and 4.22 grams per tonne gold and 28.7 silver over 1 metre (sample 64615); 1.85 per cent copper, 1.71 grams per tonne gold and 29.6 grams per tonne silver over 0.5 metre (sample 64617); and 0.88 per cent copper, 0.86 gram per tonne gold and 20.5 grams per tonne silver over 1 metre (sample 64618), (Assessment Report 22018). Sample 64616 was described as a quartz-epidote filled structure with chalcocite and malachite hosted within feldspar porphyry. Samples 64615, 64617 and 64618 are described as quartz-flooded feldspar porphyry containing chalcopyrite, chalcocite and malachite.

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