The Harvey Hill project is underlain by argillic sedimentary rocks, intermediate to mafic volcanic rocks, and talc schist of the Humber zone in the Quebec Appalachians. Three zones of Cu+Ag mineralization occur within strongly carbonate+sericitic altered argillic schists, with quartz veins and veinlets. Chalcocite, chalcopyrite, and boronite are noted in mineralized intervals.

Harvey Hill deposits was discovered in the mid-1800's and operated intermittently as an underground mine until 1981, with the deepest level approximately 120m below surface. Past production is reported at 159kt of 1.25% Cu and 3.6 gpt Ag between 1973 and 1976, not including a small amount of production between 1858 and 1903. The historical resources, non-43-101 compliant, is reported at 299kt of 1.66% Cu (MERN DV 85-08). In addition to Harvey Hill, base metal occurrences are recorded at Foy (400m WNW of Harvey Hill) and Nutbrown (1km WNW of Harvey Hill) on the Fancamp property.