The BALD HILLS showing is a postglacial uranium concentration in a pond and in associated marsh sediments. It is located approximately 6.75 kilometres south of Darke Lake.

This is one of many uranium occurrences discovered by D.G. Leighton & Associates Ltd. in the late 1970s. Work prior to the uranium moratorium in 1980 consisted of auger sampling. The area is underlain by granite and granodiorite of the Middle Jurassic Osprey Lake Intrusions.

The occurrence is recent, having formed from the interaction between uranium-rich groundwater and unconsolidated material containing organics or clay. This process is believed to still be taking place. The source of the uranium is thought to be the surrounding igneous rocks, where groundwaters rich in carbonate and alkali ions have leached labile uranium from fresh rock exposed after glaciation.

The showing comprises two areas of uranium enrichment in surficial soils which measure 11,200 and 6,400 square metres, respectively.

The first area, "A", has an average thickness of 1.0 metre, which averages 0.0123 per cent uranium (Culbert, 1979). Within that layer a 0.5-metre section averages 0.0154 per cent uranium (Culbert, 1979). The uraniferous layer lies 1.0 metre below the surface (Culbert, 1979).

The second area, "B", has an average thickness of 2.0 metres, which averages 0.0103 per cent uranium (Culbert, 1979). Within that layer a 0.5-metre section averages 0.0127 per cent uranium (Culbert, 1979). The uraniferous layer lies 1.0 metre below the surface (Culbert, 1979).