The Argen occurrence is located on the west side of Rock Creek at 1250 metres elevation, 7.75 kilometres southeast of Baldy Mountain. The Cariboo-Amelia of the historic Camp McKinney lies 1.25 kilometres to the southwest and 9 kilometres north of Bridesville, British Columbia.

The Argen occurrence lies in a complex sequence of volcanic and metasedimentary rocks of the Carboniferous to Permian Anarchist Group. Granitic and granodioritic rocks of the Cretaceous to Tertiary Okanagan batholith and Middle Jurassic granitic rocks of the Nelson intrusions lie immediately to the north. Eocene Penticton Group volcanic and sedimentary rocks overlie locally sheared amphibolite and serpentinite bodies of the Anarchist Group to the east. For a more detailed description of the regional geology of the McKinney camp area refer to the Cariboo-Amelia occurrence (082ESW020).

Locally, the Argen occurrence is hosted in siliceous schist and quartzite. These rocks strike north with steep dips and are highly fractured, banded and jointed.

No early records could be found concerning the development of the Argen occurrence on the Argen claim. The claim was Crown granted to J.A. Mara in 1896. In 1980, the Rock Creek Joint Venture optioned the ground covering the Argen occurrence from Dayton Creek Silver Mines Ltd. The following is their description of the Argen occurrence. The Argen shaft is 6.1 metres deep. Nine metres to the northwest is a small caved pit. Opencuts extend northwest from this pit 45 metres. Other old trenches and opencuts are scattered on the Argen claim.

This shaft intersected a shear zone striking 125 degrees and dipping 80 degrees to the southwest. The shear zone varies from 15 to 61 centimetres wide and is rusty. Quartz in the shear zone is mineralized with pyrite and galena (Assessment Report 8928). A 36-centimetre chip sample (23188) taken from freshly blasted vein material in 1980 yielded 2.4 grams per tonne gold, 48.0 grams per tonne silver and 1 per cent lead (Assessment Report 8928).