The Roberts occurrence is located on an unnamed creek flowing north west off of Mount Bolduc into the Gordon River.

The area is underlain by a series of basaltic flows and related pyroclastics of the Karmutsen Formation and is overlain by, or interbedded with, limestone of the Quatsino Formation; both units belong to the Upper Triassic Vancouver Group. Andesite to rhyolite tuffs and breccias, with minor intercalated greywacke and argillite, of the Lower Jurassic Bonanza Group overlie the Upper Triassic rocks. Intruding this stratigraphic assemblage is the Early to Middle Jurassic Island Plutonic Suite of monzonite to diorite composition.

Locally, disseminated pyrite with minor chalcopyrite crystals, less than 2 millimetres, are hosted in a medium texture grey siliceous volcanic and are exposed in a cluster of out crops over a distance of 200 metres. No assay values have been reported.

In 2007, the Roberts claims were staked by V.J. Buddick and prospected the following year.