The showing is underlain by Lower Jurassic Hazelton Group volcanics of the Telkwa Formation comprised of andesitic to rhyolitic flows, tuffs, and breccia. Mineralization occurs along bedding planes and in fractures within the andesitic breccia and flows. The mineralization consists of chalcopyrite and specularite.

At elevation 1362 metres, bedding and jointing planes in the volcanics host chalcopyrite over 2.1 metres. The bedding strikes 306 degrees and dips steeply southwest. In 1928, a selected sample assayed 6.0 per cent copper, trace silver, and trace gold. A surface sample of a stringer from this showing assayed 1.0 per cent copper (Minister of Mines Annual Report 1928, page 176). Approximately 122 metres south of this showing, an open cut in volcanics striking 080 degrees and dipping southeast, shows copper mineralization in small fractures striking 018 degrees and dipping steeply southeast. A selected sample assayed 2.1 per cent copper (Minister of Mines Annual Report 1928, page 176).

At elevation 1384 metres, specular hematite occurs along bedding planes in the volcanic flows. Minor chalcopyrite occurs with the hematite and a selected sample of the specularite assayed 0.2 per cent copper (Minister of Mines Annual Report 1928, page 176).