The Mad 9 occurrence is located on the east side of Stirrup Creek at an elevation of 1200 metres.

The region is underlain by mainly sedimentary rocks of the Lower Cretaceous Jackass Mountain Group, cut by several cross faults and splays of the Fraser fault. Intruding the Jackass Mountain Group are numerous dikes and small stocks of quartz feldspar porphyry.

Locally, sandstone has been intruded by a feldspar porphyry sill hosting minor pyrite.

In 1984, two samples (84MPT-65 and 84MPT-66) yielded values from 0.456 to 0.699 per cent copper, 0.017 to 1.314 per cent zinc, 13.9 to 21.7 grams per tonne silver, 0.145 to 0.630 per cent mercury and 14.0 to 28.0 grams per tonne gold (Assessment Report 13019).

During 1983 through 1985, Utah Mines completed programs of geological mapping, geochemical sampling and an induced polarization survey on the area as the Mad claims. In 1987 and 1988, Southern Gold Resources completed programs of geological mapping and rock and soil sampling. In 1997 and 1998, First Point Capital, on the behalf of BHP Minerals, completed programs of rock, silt and soil sampling. In 2006 and 2007, Durfield Geological completed programs of geological mapping, geochemical sampling and an induced polarization survey.