The Bon 15 occurrence is located on a ridge in the southern head waters of Friendly Creek, a tributary of the Bonanza River, north of the Nimpkish River. It is one of several which occur along a 1.2-kilometre long 285-degree trend.

The area is underlain by an assemblage of alternating massive to amygdaloidal andesites and basalts of the Upper Triassic Vancouver Group, Karmutsen Formation. Minor lenses of limestone are interbedded with the volcanic rocks. Granodiorite of the Late Jurassic Nimpkish batholith, which is part of the Jurassic Island Plutonic Suite, intrudes the Karmutsen Formation volcanics. Locally, the granodiorite is epidote-altered.

Locally, a 1.2 metre section of amygdaloidal flow in an area of tensional fracturing contains chalcopyrite within amygdules. The chalcopyrite forms 1 to 2 millimetre pockets in some of the larger amygdules and constitutes most of all of the smaller ones. Visual estimates of 0.2 to 0.3 per cent copper over 30 metres are reported in Geology, Exploration and Mining 1970, page 278.

In 2007, sampling of chalcopyrite-garnet skarn yielded 2.0 per cent copper and 12.3 grams per tonne silver over 3.0 metre wide sulphide zones (Rock Sample 2; Assessment Report 30120).

Some 100 metres to the southwest, still within the area of tensional fracturing, narrow quartz veins are present along some of the fractures. The quartz veins host minor pyrite and chalcopyrite.

Work History

During 1968 through 1970, Brettland Mines completed programs of prospecting, geological mapping, soil sampling, ground and airborne magnetometer surveys and 13 diamond drill holes, totalling 334.2 metres, on the area as the Bon claims. In 1980, Vanstates Resources completed a program of soil sampling on the area as the Big Mac claims. In 2007 through 2013, Homegold Resources completed programs of rock and soil sampling, air photo geological interpretation and a ground magnetometer survey on the area as the Bonanza River property. In 2018, Hawkeye Gold and Diamond Inc. completed a minor program of prospecting and rock sampling on the area as the Bonanza property.