The Site 31 occurrence is located on a ridge separation between Sand and Hardscrabble creeks, approximately 2.5 kilometres west of the Skeena River.

The area is underlain by a sequence of volcanic and sedimentary rocks that have been mapped as Early Jurassic Hazelton Group or more recently as Early Jurassic Kitselas volcanics. The Kitselas volcanics are predominantly of felsic composition.

Locally, molybdenite and pyrite mineralization occur in quartz vein systems associated with quartz-sericite-pyrite alteration hosted in a weak to intense clay- altered granodiorite. The alteration is interpreted to be largely propylitic, with possibly some silicification associated with the larger quartz veins.

In 2005, drillhole 05-02 intersected 12.5 metres of a mineralized andesite. The mineralization consisted of two parts separated at 9.0 metres by a band of epidote-chlorite mineralization dipping at 60 degrees. The upper mineralization was comprised of near-vertical pyrite-chalcopyrite veinlets in epidote-chlorite– altered andesite. Its grade was estimated at 0.15 to 0.20 per cent copper. The lower mineralization was mainly coarse fracture fillings of chalcopyrite and lesser molybdenite in an altered augite andesite. The grade of mineralization was estimated to be 2.0 per cent copper and 0.15 per cent molybdenite (Assessment Report 28109).

In 2002, the Carlson group of mineral claims was staked by G.W. Kurz to cover a large area of pyrite mineralization. During 2003 through 2014, various programs of prospecting, geological mapping, a ground self-potential geophysical survey, two diamond drill holes, totalling 246.2 metres, and rock, soil and silt sampling were completed.