The GM occurrence is located southeast of Gilbert Lake, approximately 2.7 kilometres east of Dairy Lake.
The area is underlain by Upper Triassic Nicola Group intermediate volcanic rocks, agglomerate and minor tuffaceous sediments, which have been intruded by a Tertiary (?), zoned quartz diorite to quartz monzonite stock. Disseminated pyrite (up to 3 per cent), magnetite (up to 1 per cent) and local hematite are common in the medium- to coarse-grained diorite and quartz monzonite intrusions.
The Nicola rocks are massive, grey-green porphyritic andesite flows. Within the volcanic package are flow-top breccias that have been infilled with calcite ± quartz, disseminated pyrite and chalcopyrite. The more massive volcanic rocks are locally intercalated with agglomerates. The Nicola Group rocks exhibit weak to moderate chlorite + epidote ± disseminated pyrite alteration over large areas. Silicification of the volcanic rocks is pervasive with associated development of weak quartz veining. One outcrop of orange-brown, fine- grained and siliceous tuffaceous rock occurs 500 metres southeast of Gilbert Lake.
Locally, quartz-calcite veining (up to 0.5-centimetre-wide) contains disseminated pyrite, chalcopyrite with minor galena and scheelite. In 1994, two rock samples (3662 and 3670) of a propylitized volcanic rocks with quartz-calcite veinlets assayed up to 0.181 per cent tungsten and 0.028 per cent molybdenum, and a sample (3664) of a clay- altered quartz diorite assayed 0.77 gram per tonne gold (Assessment Report 23380).
Another zone of mineralization, located approximately 400 metres north east of Gilbert Lake, consists of sericitized and weakly silicified quartz monzonite hosting minor amounts of molybdenite, pyrite and chalcopyrite.
A siliceous and moderately propylitized volcanic, located approximately 700 metres to the west, hosts quartz veinlets. In 1994, a sample (2828) assayed 0.150 per cent copper and 0.27 grams per tonne gold (Assessment Report 23380).
In 1973 and 9174, Moneta Porcupine Mines Ltd. carried out a limited program of geological mapping and soil sampling on their Led claims, which were in the vicinity of the GM occurrence. In 1977, the property was held by Barrier Reef Resources Ltd. as the Gil claims, and a short access road was constructed. In 1978 and 1979, Barrier Reef collected a total of 399 soil samples. In 1980, the company conducted a 10.9-kilometre induced polarization survey. In 1990 and 1991, C.R.C. Explorations Limited took 383 soil samples over 19.2 kilometres of grid on the GM claims, which now cover the occurrence. In 1994 and 1995, C.R.C. Explorations continued work on the claims and conducted geological mapping, collected 349 soil and 30 rock samples, and established 11.1 kilometres of grid. In 2006, a photo-geological review was completed. In 2008, Dore Mining completed a 52.4 line-kilometre induced polarization and magnetometer survey on the area.
During 2013 through 2015, Tower Resources completed programs of rock sampling, geological mapping and airborne and ground geophysical surveys on the area as the Rabbit North property.
