The Mohawk property straddles the summit of Four Mile Mountain, 8 kilometres east of Hazelton.

The property is underlain by intensely altered tuff and sandstone of the Middle Jurassic to Lower Cretaceous Bowser Lake Group which is intruded by a small (1500 metres in diameter) stock of coarse grained grey granodiorite of the Eocene Babine Intrusions. Potassium/argon dating of biotite in the stock indicates an age of 55 million years (Geological Survey of Canada Open File 2322). A few small dikes of biotite aplite are exposed in the main adit.

The veins are fault-controlled, commonly at the contact between the granodiorite and the sediments or within the sediments. They generally narrow significantly in the granodiorite within a few metres of the contact with the sediments. The main workings occur within a tongue-like body, of the altered sedimentary rocks, which extends eastward into the granodiorite. Three veins exposed in the main workings strike approximately 065 degrees, dipping between 30 and 65 degrees southeast. A fourth vein, located 250 metres northwest of the main vein exposure, also strikes approximately 065 degrees, dipping 60 degrees southeast. The veins range from 10 to 120 centimetres in width and are up to 135 metres in length. The gangue minerals are banded quartz and siderite with sparse sulphides. The ore shoots are small, rich and contain the following sulphide minerals in order of decreasing abundance: jamesonite, sphalerite, pyrite, galena and tetrahedrite. Tungsten is also reported to have been found in the mine.

One rich sample assayed 11,387.82 grams per tonne silver, 23.31 grams per tonne gold, 14.1 per cent lead, 8.8 per cent zinc, 8 per cent copper and 4.8 per cent antimony (Property File - Hagen, E.A., 1928).

In 1979, an outcrop sample (1952) of the mineralized shear zone yielded 30.1 grams per tonne silver, 1.12 per cent lead and 9.57 per cent zinc, while a sample (1951) from the underground workings yielded 84.8 grams per tonne silver, 2.50 per cent lead and 0.10 per cent zinc over 0.6 metre (Assessment Report 7955). Also at this time, a lone drill hole intersected 0.6 metre grading 118.3 grams per tonne silver, 2.23 per cent lead and 3.32 per cent zinc at a depth of 55.8 metres (Assessment Report 7955).

Work History

The property has been developed by an adit at the 610-metre level and a small tonnage of ore was hand sorted and shipped between 1913 and 1929. The property has also been explored by numerous trenches and two short shafts. The property was first staked in 1911 and was shut down in 1929.

In 1979, Cumo Resources Ltd. completed a program of soil sampling, a ground electromagnetic survey and a lone drill hole.

For a completed regional/property exploration history see the American Boy (MINFILE 093M 047) occurrence.