The Mohawk occurrence is located 6.0 kilometres south-southeast of Alice Arm on the northwest flank of Mohawk Mountain.

The region is underlain by Middle Jurassic to Upper Cretaceous Bowser Lake Group argillite, shale, siltstone, greywacke and conglomerate. These have been intruded by Lower Tertiary granodiorite and diorite of the Coast Plutonic Complex. The sediments have been folded and contact metamorphosed to biotite hornfels.

The occurrence consists of a quartz vein, 0.30 to 0.61 metre wide, which strikes 108 degrees for 240 metres and dips 75 to 80 degrees north. The vein, faulted and displaced 6.1 metres where it crosses Mohawk Creek (Orange Creek), is developed concordantly in argillite.

The vein contains milky white quartz mineralized with black sphalerite, minor pyrite and traces of ruby silver (pyrargyrite), galena and arsenopyrite. The vein is reported to carry good gold and silver values (Minister of Mines Annual Report 1911, page 65). A small high grade ore shoot is reported to have been mined from a 1.8 metre long tunnel and a 1.8 metre shaft just east of the fault on the creek. The ore material had an average grade of 10,300 grams per tonne silver (Minister of Mines Annual Report 1916, page 69).

Previous to 1911, small scale underground mining of high-grade ore is reported and the vein was periodically explored for gold and silver between 1911 and 1930. During the mid-1960s and early 1970s the area was examined for molybdenum.

A vein carrying molybdenite is reported to occur at a lower elevation.