The Sit occurrence is located on a south facing slope, approximately 4 kilometres southwest of Sustut Lake, at approximately 1600 metres elevation.

The area lies within a fault block, which is bounded to the east by the north-northwest trending Ingenika fault, to the north by the northeast trending Sustut River fault, to the west by an unnamed northwest trending fault and to the south by the north trending Quenada thrust fault. Within the fault block a southwest dipping stratigraphic succession is formed. From east to west, the stratigraphy begins with the Upper Triassic Takla Group: the Moosevale Formation overlies the Savage Mountain Formation, and the Dewar Formation underlies both of these. The basement to the Takla Group in the fault block is the Permian Asitka Group. Both of these groups generally contain volcanics, volcaniclastics and sediments.

The Sit occurrence is hosted within pillowed augite basalts, aphanitic basaltic flows and amygdaloidal basalts of the Upper Triassic Savage Mountain Formation. Volcanic siltstones, argillites and intercalated basaltic tuffs of the Dewar Formation conformably underlie these volcanics. Chalcopyrite, bornite and chalcocite occur in calcareous fractures and amygdules within aphanitic basaltic flows and amygdaloidal basalts. Copper carbonates are also present within the fractures and amygdules (Geology, Mining and Exploration in British Columbia 1974, page 303). Some scattered copper mineralization was also observed in the shales.

Copper sulphides and carbonates are present in cracks and cavities in the uppermost of a series of aphyric basalt lava flows and breccias which are overlain by a thin zone of poorly exposed limestones and shales which are stratigraphically equivalent to the mineralized beds on Wesfrob’s Willow property (094D 082) 8 kilometres to the northwest.

In 1973, the Asitka 1-196 claims were held by Wesfrob lines Limited. In 1973 a geochemical soil survey (287 samples), magnetometer and electromagnetic surveys were carried out (Assessment Report 4786). Work during 1974 included a geochemical soil survey (28 samples) over 1.1 line-kilometres, and 275 metres of diamond drilling in 3 holes on Asitka 125 and 127 (National Mineral Inventory 094D/9 Cu7).