The Hi-Lo occurrence is located on the west shore of Duncan Lake, 1.5 kilometres northwest of Schroeder Point in the Slocan Mining Division.

Regionally, the area lies within the Kootenay Arc near the margins of the Ancestral North American Terrane. The Kootenay Arc is a curving belt of highly deformed metasedimentary and metavolcanic rocks which includes the Upper Proterozoic Horsethief Creek Group, the Eocambrian Hamill Group, the Lower Cambrian Badshot Formation, and the lower Paleozoic Lardeau Group. The volcano-sedimentary sequence is intruded by numerous Ordovician, Devonian and Mississippian granitoid plutons. The rocks have undergone regional metamorphism to middle or upper greenschist facies (Paper 1993-1).

The property is underlain by quartz mica schist and calcareous schist of the Index Formation of the Lardeau Group. A narrow band of crystalline limestone of the Badshot Formation is exposed on the eastern part of the property. Two types of mineralization are present. The first consists of galena and scheelite with traces of chalcopyrite occurring in quartz veins replacing limestone of the Badshot Formation. The second type of mineralization consists of sphalerite and pyrrhotite as replacement of calcareous schist layers within the Index Formation.