In 1981, Rock Creek Joint Venture located a 30-metre adit, two shafts and several trenches on the west side of Crouse Creek. Work at the time consisted of soil sampling, geological mapping and prospecting.

The mineralized area is underlain by mainly altered mafic volcanics of the Upper Paleozoic Wallace Formation, near the western edge of the north-trending Rock Creek graben. Immediately to the west, Eocene granitic rocks are exposed, and within the rock Creek graben, middle Jurassic plutonic rocks intrude Paleozoic Wallace Group metavolcanics and metasediments. These are unconformably overlain by conglomerate and sandstone of the Eocene Kettle River Formation and dominantly alkalic volcanic rocks of the overlying Marron Formation.

Fracture-filled and disseminated mineralization occurs as scattered occurrences, primarily in the greenstones. Minerals are pyrite, chalcopyrite, minor galena and sphalerite, and malachite-azurite staining. A massive magnetite body associated with the greenstone occurs in the adit. Minor copper mineralization was observed in the granodiorites and diorites.

A grab sample from a vein above the adit assayed 7.8 grams per tonne gold, 0.52 per cent copper, 0.215 per cent zinc, and 0.047 per cent lead. A 1-metre sample from a shaft assayed 29.6 grams per tonne gold, 0.58 per cent copper, 0.14 per cent zinc, and 0.125 per cent lead (Assessment Report 9806).