The Mad C occurrence is located on the south side of Watson Bar Creek at an elevation of approximately 1050 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, altered sandstone hosts a quartz sulphide vein up to 1 metre thick. The vein strikes 345 degrees with a dip of 20 degrees west. Above and 30 metres to the south a malachite stained quartz-carbonate gossan is exposed.

In 2006, a sample (250305) of vein material assayed 96.67 grams per tonne gold and 10.3 grams per tonne silver; while a sample (250306) of the malachite stained gossan assayed 0.61 gram per tonne gold, 13 grams per tonne silver and 0.599 per cent copper (Assessment Report 28628).

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.