The Flathead Group, consisting of the Wolf, Berg, Mite and Jose claims, are located at the headwaters of the Middlepass Creek. They were staked in 1967 by H. Marasek.

The area is underlain by argillites and argillaceous limestones and dolomites of the Helikian Purcell Group. A sample of siliceous material taken from a fault zone assayed 34.29 grams per tonne silver, 1.17 per cent copper and 0.053 per cent tungsten (Lorimer, 1967).