The region is underlain by (?)Hadrynian to Paleozoic Snowshoe Group rocks, which occur within the Barkerville Terrane of south-central British Columbia. These metasedimentary rocks consist primarily of marble, quartzite and phyllite which in the area of the Pitt showing comprise the Downey succession (informal). Metamorphism of the region varies from chlorite grade to sillimanite and higher. The lode gold deposits of the region occur in rocks metamorphosed no higher than greenschist facies.

At the Pitt 1 showing, chalcopyrite with associated silver and gold mineralization occurs within a quartz vein hosted in a 7.6 metre wide limestone bed.

In 1983, a program of silt, soil, heavy mineral and rock sampling and geological mapping was conducted on the Pitt claims on behalf of Pluton Resources Ltd. In 1996, geological mapping was conducted in a 3 square kilometre area on the western portion of the Nugget Mountain property; a total of 129 soil samples and 49 rock samples were collected. The Pitt 1 showing is located within a 1 kilometre radius of several showings (Gisco (093A 052), Pittman (093A 057)) that were explored along Antler Creek in the 1930s and 1940s, near the mouths of Nugget Gulch and Victorian Creek. In 1987, Rise Resources Inc. completed 419 kilometres of helicopter-borne magnetic and VLF-EM survey over their block of claims which covered the Zone showing. In 2005, a total of 43 samples (9 soil, 1 moss mat silt and 33 rock) were taken on the Nugget Mountain project claims, which covers the showing, on behalf of claim owners R.J. Menard and G.J. Newell.