The M&M showing is located on the eastern side of the Salmon Glacier, approximately 1.2 kilometres northwest of Noname Lake.

The area is underlain by Upper Triassic to Lower Jurassic Hazelton Group, Unuk River Formation metavolcanics. The Hazelton Group is a northwest-trending, steeply east dipping belt of folded andesitic lapilli tuffs, flows and breccia containing a thick sequence of argillite and siltstone infolded along a synclinal axis. The sequence is intruded by Early Jurassic Texas Creek dacitic porphyry dikes.

Locally, a narrow, 2 to 10 centimetre wide, quartz vein containing galena, sphalerite, chalcopyrite and pyrite is hosted in dacitic flows.

In 1991 and 1992, Westmin Resources and Homestake Canada completed a program of soil sampling, geological mapping and prospecting. Sampling returned grades up to 2.74 grams per tonne gold and 1004 grams per tonne silver (Assessment Report 22705).

During 2004 through 2019, the area has been explored as part of the Silver Coin property and a complete property exploration history can be at the nearby Silver Coin (MINFILE 104B 150) occurrence.