The Cariboo showing is located in porphyritic granite of the Nelson Intrusions. Several later phase granitic dikes striking around 350 degrees with near vertical dip occur. Mineralization consists of irregular disseminations of pyrite, pyrrhotite and small amounts of chalcopyrite and sphalerite throughout the dikes. Larger concentrations of these minerals also occur in numerous streaks and bunches throughout the dike rock over considerable area but separated by much larger areas of sparsely mineralized rocks.

Prior to 1929, the property had been developed by five opencuts, a 9-metre tunnel, a 30-metre tunnel (a crosscut through barren ground), and a 3.7-metre shaft. The workings are described as being an opencut about 150 metres north of an old cabin, an opencut and shaft 213 metres north of the cabin, an opencut 150 metres northwest of the cabin and a 9-metre tunnel about 365 metres south of the cabin. A 3.7-metre shaft is located about 90 metres northwest of the 9-metre tunnel. The location of the 30-metre tunnel was not reported.

A chip from the 9-metre tunnel assayed 0.69 gram per tonne gold, 30 grams per tonne silver and 0.13 per cent copper across 6 metres (Starr, 1929 (Property File)). Samples from the shaft to the northwest of the tunnel and from the workings north of the cabin yielded similar values.