The BROKEN HILL polymetallic vein is on the west side of Sebring Creek, approximately three kilometres north of Carpenter Lake and 39 kilometres east of Gold Bridge, B.C.

The prospect is within argillite, slate, quartzite and chert with andesite and basalt; all are phyllitic and highly altered. These rocks are part of the Mississippian to Jurassic Bridge River Complex (Group). The sedimentary rocks are cut by granodiorite of the Eocene Mission Ridge pluton and Tertiary porphyritic rhyolite.

An area 18 metres wide and continuous for at least 500 metres contains veins, lenses and disseminations of pyrite, galena, sphalerite, chalcopyrite and malachite. The rocks are brecciated, fractured and siliceous and comprise part of the regionally important Marshall Creek fault zone.

A best assay, obtained from the upper of two adit portals, graded 709.0 grams per tonne silver, 0.14 grams per tonne gold, 1.03 per cent copper, 3.83 per cent lead and 2.05 per cent zinc. An average of assays across 18 metres of silicification is 48.3 grams per tonne silver (Assessment Report 11457).

In 1913, upper and lower adits were driven in an oxidized, sheared and copper-stained rhyolite dike. Undocumented works followed in the area, then in 1983 Quinto Mining Ltd. undertook a program of underground mapping and chip sampling, as well as soil and rock sampling. In 1988, Hera Resources Inc. re-mapped the adits and conducted further soil sampling (Assessment Report 19106).

In 2020 Saxifrage Geological Services Ltd. conducted rock sampling to determine the petrochemistry of the rhyolite dike and also obtained several silt samples from the area to confirm previous RGS sampling (Assessment Report 39909).