The Sauce occurrence is located in the southwestern headwaters of a northeast-flowing tributary of the Keogh River, approximately 11 kilometres east of Quatse Lake.

Regionally, the area is underlain by northwest-trending belts of basaltic volcanics and carbonate sedimentary rocks of the Upper Triassic Karmutsen and Quatsino formations (Vancouver Group) and mafic volcanics and sediments of the Upper Triassic to Lower Jurassic Bonanza Group (Holberg volcanic unit, Nahwitti River wacke and Parson Bay Formation). These volcanic and sedimentary rocks have been intruded by granodioritic rocks of the Early to Middle Jurassic Island Plutonic Suite.

Locally, disseminated pyrite and chalcopyrite are found in limy sediments (Parson Bay Formation?) enclosed by Karmutsen Formation volcanics.

In 1968, Newmont Exploration of Canada Ltd. completed a program of soil sampling and ground geophysical surveys on the area as the Sauce claims. Also, at this time, Emperor Mines completed an airborne magnetic survey on the area immediately north.