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 showing comprise the Downey and Harveys Ridge successions (informal names). 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.

The Antler Mountain showing is underlain by massive to fissile quartzite, argillaceous quartzite and schist. These units are crosscut by three sets of quartz veins, one set at 120 to 130 degrees and dipping about 50 degrees to the northeast, the second set striking at 055 to 075 degrees and the third set striking more or less to the north. Oxidized pyrite occurs in many of the veins and occasionally, galena, sphalerite and arsenopyrite. In 1987, a sample from an oxidized surface showing assayed 12.307 grams per tonne gold over 1.1 metres (George Cross Newsletter #80 April 27, 1987).

During 2000 through 2008, Golden Cariboo Resources Ltd. completed programs of prospecting, geological mapping, geochemical (rock, soil, moss and stream sediment) sampling, ground magnetic and self potential surveys, trenching and 60 diamond drill holes, totalling 28,710.0 metres on the area as the Golden Cariboo property. A complete summary of exploration programs can be found at the Cariboo Hudson (MINFILE 093A 091) occurrence.