Location of Freemont mine shaft and vein (Assessment Report 5124), at the north end of Greenwood.
Chert, schists and greenstones of the Paleozoic Knob Hill Group are intruded by granodiorite and diorite of the Greenwood Stock. All rocks have been injected by quartz-calcite veins. Younger dikes of feldspar porphyry and lamprophyre intrude chert and granodiorite. Two veins, or segments of the same vein, on the Freemont claim carry pyrite, chalcopyrite, and a trace of native silver along their walls.
Production in 1918 amounted to 5 tonnes of ore, yielding 4479 grams of silver and 31 grams of gold.