The Glengarry showing occurs in a hornblende schist and gneiss of the Permo-Triassic Kaslo Group and a quartz-mica schist with minor limestone unit of the Mississippian to Lower Permian Milford Group. Workings consist of a caved incline shaft, about 20 metre deep and made about 1900, and a shallow adit about 200 metre southeast of the shaft, made after 1917.

Several short narrow veins in quartzite and hornblende schist contain coarse, dark-coloured sphalerite, galena, pyrite and minor chalcopyrite. One vein exposed in and open cut less thatn 30 metres northwest of the adit contains galena in siderite and quartz.