The Punch Bowl South (Saddle) occurrence is located at an elevation of approximately 2150 metres on a north-south–trending ridge, east of Pacific Creek and near the British Columbia–Alberta border. Mount Hooker is located approximately 2.2 kilometres to the northeast.
Regionally, the area is marked by the southwest-dipping Chatter Creek thrust fault. To the southwest the hangingwall of the Chatter Creek thrust is composed of grits, pelites, psammites and carbonates of the Neoproterozoic (Hadrynian) Miette Group and overlying Lower Cambrian clastics of the Gog Group. The region is dominated by broad open folds making up the Baker Glacier syncline and Porcupine Creek anticlinorium. To the northwest the Chatter Creek thrust sheet contains the Fraser River antiform. Within the Chatter Creek thrust sheet, metamorphic grade increases westward from greenschist to kyanite-staurolite–bearing assemblages of amphibolite grade.
The footwall of the Chatter Creek thrust sheet to the north and east is composed of the Lower Cambrian Gog Group, overlain by a series of thickly bedded, Middle Cambrian, dominantly carbonate rocks striking 325 degrees and dipping 20 degrees. Tight to isoclinal, overturned mesoscopic folds occurring within imbricate quartzite slices, within this thrust sheet, have fold axes that trend 140 to 150 degrees and plunge gently southeast.
Within the occurrence area, the Gog Group strata are subdivided into the lowermost McNaughton, the Mural and uppermost Mahto formations, in the immediate footwall of the Chatter Creek thrust. The predominant lithology is a medium- to coarse-grained, moderately to poorly sorted, pale-weathering, gray feldspathic quartzite. Other lesser lithologies include pelite and conglomerate.
Locally, discordant quartz-carbonate veins host chalcopyrite in sinuous blebs measuring up to 8 by 1 centimetres with trace native copper, malachite and pyrite. The discontinuous mineralized outcrop has been traced over a strike length of approximately 200 metres along a northwest trend.
In 2021, a rock sample (151888) of mineralized float vein material assayed 1.68 per cent copper and 3 grams per tonne silver, whereas a nearby outcrop sample (151867) yielded 0.26 per cent copper (Assessment Report 40484).
Work History
During 2020 through 2023, Pegasus Resources Inc. completed programs of prospecting, geological mapping and rock sampling on the area as the Punch Bowl property. The occurrence was discovered in 2021.