The General-Grant occurrence is located at an elevation of approximately 1500 metres on a northeast-facing slope, south of Woodbury Creek and approximately 5.5 kilometres west-northwest of the creek mouth on Kootenay Lake.

Regionally, the area is underlain by hornblende schists, limestone and banded quartzite of the Upper Mississippian to Permian Milford Formation, basaltic volcanic rocks of the Carboniferous to Permian Kaslo Group and limestone, slate, siltstone and argillite of the Triassic Slocan Group. Granodioritic intrusive rocks of the Middle Jurassic Nelson Batholith are exposed to the west.

The General-Grant occurrence is underlain by sedimentary rocks of the Mississippian to Permian Milford Formation which are cut by Upper Triassic to Middle Jurassic intrusives. Mineralization comprises grey-copper (tetrahedrite) carrying small amounts of galena and sphalerite and high amounts of silver within small shoots in quartz-filled fissure veins, which cut siliceous limestone near a granite contact. The vein has been accessed by two tunnels with considerable development.

Approximately 90 metres north from the portal of the lower cross-cut adit another vein is reported to be exposed in a historical shallow cut. The vein is described as 0.6 metre wide with a northwest-southeast strike.

A shipment of 5 tonnes in 1972 yielded 7589 grams of silver, 107 kilograms of lead and 146 kilograms of zinc. In 1889 and from 1916 to 1921, 22 tonnes of ore was shipped, and 298 718 grams of silver and 2489 kilograms of lead were recovered.

Work History

In 1916, a tunnel was extended 12 metres with two upraises of 36 metres. 2.7 tonnes of ore was sacked at this time and was reported to average 68 600 grams per tonne silver (Annual Report 1916).

In 1921, a sample across a 20-centimetre pay-streak in one stope yielded 0.69 gram per tonne gold, 21 579 grams per tonne silver, 13.3 per cent lead and 4.8 per cent zinc, whereas a sample from the vein exposed in the shallow cut to the north yielded 1787 grams per tonne silver (Annual Report 1921). The workings at this time were described as consisting of two crosscut tunnels, approximately 24 vertical metres apart. The Upper crosscut is 8.5 metres to the vein, which has been drifted on for approximately 30 metres to the southwest. An ore shoot encountered in the drift was stoped to surface. The lower crosscut is approximately 30 metres to the vein and has been drifted on for approximately 122 metres to the southwest, with two raises of approximately 18 metres.

In 1983, Golden Dragon Resources Ltd. conducted a program of prospecting and geochemical (soil and rock) sampling on the area as the Dragon South property. A rock sample (R15) is reported to have yielded 4443 grams per tonne silver (Assessment Report 12621).

In 1987 and 1988, La Ronge Resources Ltd. conducted programs of geological mapping, geochemical (rock, silt and soil) sampling and a 9.8 line-kilometre ground magnetic survey on the area as the Golden group of claims.

During 2007 through 2011, Goldcliff Resource Corp. completed programs of prospecting, geological mapping, geochemical (rock, silt and soil) sampling and an airborne geophysical survey on the regionally extensive Ainsworth Silver property. In 2015, Goldcliff Resource Corp. conducted a program of prospecting, geological mapping, geochemical (rock, silt and soil) sampling and a 4.1 line-kilometre ground electromagnetic survey on the area as a part of the Ainsworth Silver property.

In 2020 and 2021, Goldcliff Resource Corp. conducted a further program of geochemical (rock, silt and soil) sampling and a 508.0 line-kilometre airborne magnetic, electromagnetic and radiometric survey on the Ainsworth Silver property.