The South Limb graphite occurrence is located near the western headwaters of Bergman Creek, approximately 20 kilometres southwest of the town of Nakusp.

The area is underlain by calcareous and epiclastic metasedimentary rocks of the Devonian to Carboniferous Chase and Silver Creek formations of the Proterozoic to Paleozoic Monashee Complex.

Locally, quartz-biotite-muscovite-garnet schist, biotite-garnet±muscovite±silliminite schist and marble host coarse- grained flake graphite. Graphite occurs as bright blue-black flakes disseminated throughout and oriented parallel to the foliation plane. Flake sizes generally range from less than 0.1 millimetre to greater than 1 millimetre.

In 2012, rock sampling yielded up to 3.72 per cent graphite (Assessment Report 33479). In 2013, diamond drilling (hole J13-008D) intersected 1.50 per cent graphite over 124.36 metres, including 2.81 per cent graphite over 29.07 metres and 3.11 per cent graphite over 16.37 metres (Assessment Report 34974). In 2015, rock sampling yielded from 1.96 to 8.09 per cent graphite (Assessment Report 35894).

In 1980, Shamcrock Construction completed an induced polarization and resistivity survey on the area as the Red Fisher claims. During 2012 through 2015, Noram Ventures Inc. completed programs of rock sampling, geological mapping, eight diamond drill holes, totalling 1294.8 metres, and a combined airborne magnetic and electromagnetic survey on the area as the Jumbo Graphite property.