The North shear zone occurs between the Homestake-Gopher and Bluebird-Mayflower shear zones. The shear occurs mainly in the southeast portion of the Gopher Crown Grant, and continues northwest through the Maid of Erin Crown Grant to the Robert E. Lee Crown Grant where the Robert E. Lee/Maid of Erin (082FSW131) occurrence is located (Assessment Report 16751, page 23, Figure 5, Map 2).

The North prospect occurs in green volcanic conglomerate, breccia and sandstone of the Lower Jurassic Elise Formation, Rossland Group. The Rossland Group rocks are intruded within a few hundred metres to the north by the Early Jurassic Rossland monzonite which is a stock comprised of a biotite-hornblende-augite monzonite. The deposit occurs in a shear zone that strikes approximately 070 degrees, dips either vertically or steeply to the southeast, and is traceable for 400 metres. The shear zone appears to be cut off to the west by the Gopher Creek fault. The structure is continuous to the northeast as far as the Robert E. Lee/Maid of Erin occurrence (082FSW131) and possibly beyond.

The mineralization consist of pyrrhotite, chalcopyrite, arseno- pyrite, pyrite and sulphosalts. Two hundred metres to the northeast sphalerite appears as part of the mineral assemblage. The form of mineralization varies from disseminations and veinlets in the volc- anics to massive sections up to 1 metre wide. The sulphides are usually accompanied by silicification.

Chip samples across 1 metre intervals taken from trenches across the structure gave values averaging 12.17 grams per tonne gold and 33.25 grams per tonne silver (Assessment Report 16751, page 23). Six diamond-drill holes tested this zone in 1985/1986 with the best intersection grading 22.77 grams per tonne gold and 31.20 grams per tonne silver (Assessment Report 16751, page 23).