The Marcotte showing is situated 1.1 kilometres east-northeast of summit of Grasshopper Mountain, 1 kilometre northwest of the Tulameen River and 8 kilometres due west of the town of Tulameen.

A steeply-dipping quartz vein strikes 160 degrees for 38 metres, in hornblende schist of the Upper Triassic Nicola Group. The showing lies 30 to 70 metres east of hornblende clinopyroxenite and peridotite of the Early Jurassic Tulameen Ultramafic Complex. The vein is up to 2.1 metres wide and averages about 1 metre in width. Mineralization is sparse and consists of chalcopyrite, pyrite and hematite.

Some 90 metres to the west, a 1.5-metre wide vein of barren-looking quartz is exposed, striking 140 degrees. The vein is hosted in calcareous schist a short distance east of the clinopyroxenite.