The Homestake (Anyox) showing is situated 0.5 kilometre west of Granby Bay, about 2.5 kilometres southwest of Anyox on Observatory Inlet. Three claims were staked in 1910 and Crown granted in 1915 (Lots 1528 (Starlight), 1529 (Homestake No. 1), 1530 (Sunrise)) after greenstone boulders containing massive sulphides up to 0.6 metre in width were found in a creek.

The region is underlain by a roof pendant, consisting of volcanic and sedimentary rocks, within the Eocene Coast Plutonic Complex. These rocks have been correlated with the Middle-Upper Jurassic Hazelton Group and the Middle Jurassic Bowser Lake Group. The volcanics consist of variably chloritized pillow and massive basalt with minor mafic tuffs. The overlying sediments consist of argillite, siltstone and sandstone with minor chert and limestone. There are two observable phases of folding in the area, an initial north-northeast trending phase followed by a later east-northeast trending phase.

Stripping at the showing uncovered mafic dikes intruding argillite which are sparsely mineralized with pyrite and occasionally chalcopyrite, pyrrhotite and sphalerite. A sample of this mineralization assayed trace gold, trace silver and nil copper.