The Chowika Creek copper prospect is located on the "steep side of a high limestone mountain at an elevation high above timber line" (Geological Survey of Canada Summary Report 1927) west of the headwaters of Chowika Creek, 28 kilometres east of the north end of Williston Lake.
According to Summary Report 1927, "the showing consists of a mass of enargite several feet in length, enclosed in pure unaltered limestone. Below the enargite, the limestones over a large area are covered with malachite, giving the deposit, when viewed from a distance, the appearance of being much larger than it actually is. The ore consists almost entirely of well-crystallized enargite. Small amounts of pyrite and quartz can be seen in hand specimens and under the microscope small particles of covellite and chalcocite were seen, as well still smaller amounts of greyish mineral thought to be tetrahedrite."
Map 2-1975 (Geological Survey of Canada Paper 75-33) shows the area to be underlain by Middle Cambrian cream to orange crystalline dolomite underlain by sandstone and orange weathering sandy dolomite.