The AMF showing is located on the northwest side of Upper Arrow Lake about 56 kilometres south of Revelstoke, southeast of and adjoining the Big Ledge property (082LSE012).

The claims were staked in 1989 and in 1990; geological mapping and geochemical and geophysical surveys were conducted.

The area is underlain by metamorphic rocks of the Proterozoic to Paleozoic Kootenay Assemblage near the southern contact of the Thor-Odin gneiss dome. Locally, the metamorphic rocks comprise rusty-weathering schists, gneisses and amphibolites.

The metamorphic rocks contain various concentrations of disseminated pyrrhotite and/or pyrite and often minor amounts of chalcopyrite and/or bornite. Mineralized zones commonly exhibit strong chloritization.

A silicified amphibolite overlain by pegmatites and leucocratic, lineated quartz monzonite occurs along the eastern claim boundary. The dark green amphibolite hosts semi-massive chalcopyrite, bornite, pyrite and pyrrhotite. A sample of silicified amphibolite containing 10 to 15 per cent chalcopyrite, bornite, pyrite and pyrrhotite assayed 1 gram per tonne silver, 0.0991 per cent copper and 8.06 per cent iron (#387-9, Assessment Report 20539).

About 3 kilometres to the northwest another chalcopyrite showing was not assayed. It is believed that these showings indicate the downdip extension of the Big Ledge horizon.