The Foghorn Mine is located on the north easten slope of Foghorn Mountain, approximately 14 kilometres south east of the community of Clearwater.

In 1988, a program of diamond drilling, totalling 1675.9 metres, was completed by Goldspring Resources Ltd.

Foghorn Mountain is underlain by metavolcanics derived largely from intermediate crystal-lithic tuffs and porphyritic flows of the Devonian to Mississippian part of the Eagle Bay Formation. The rocks are pale to medium green chlorite-sericite schist, quartz- sericite schist, chert, phyllite and sericitic quartzite. These comprise a relatively flat lying plate, occurring as a gentle north-plunging synform. To the west, separated by an east-dipping thrust fault, are basalt, gabbro, chert and minor sediments of the Fennell Formation. The Middle Cretaceous Baldy Batholith lies to the south.

The mineralized zone, measuring 400 by 150 metres and trending 030 degrees contains several narrow discontinuous steeply dipping quartz veins with spotty to sub-massive lenses of galena, sphalerite and lesser chalcopyrite, pyrite, argentite and pyrrhotite. The veins are 5 to 20 centimetres wide, seldom exceed a few metres in length and generally strike 040 degrees. Occassionally, intersecting shear zones or breccia zones show areas of wider mineralization. A selected sample of an 8 to 20 centimetre wide vein containing massive galena and sphalerite assayed 36.45 per cent lead, 12.55 per cent zinc, 1.06 per cent copper, 10.65 grams per tonne silver and 0.34 grams per tonne gold (Assessment Report 7813).

In the mineralized zone, alteration shows a distinctive buff to orange-brown colour to the host phyllites and quartz-sericite schists and bright orange-brown limonite is common along fracture planes. A sample of the host rock in the zone of alteration and veining, which contained no visible mineralization, assayed 0.48 per cent lead, 11.0 grams per tonne silver and 0.048 per cent copper (Assessment Report 7813).