The Mac 5 East occurrence is located at an elevation of approximately 1840 metres near a small lake in a north-northwest–facing valley, approximately 2.6 kilometres south of Mount McNamara.
The area is underlain by marine sedimentary rocks and volcanic rocks of the Upper Triassic Stuhini Group. These have been intruded by the Lower Jurassic Black Lake intrusive suite, which consists of generally medium-grained granodiorite to quartz monzonite.
Locally, a greater than 1.0-metre wide quartz vein with chalcopyrite-pyrite is hosted by propylitic-altered rocks.
In 2004, an outcrop sample (192673) from a 15- to 20-centimetre wide high-grade section of the vein assayed 4.8 grams per tonne silver and greater than 1.00 per cent copper (Assessment Report 27633).
Another zone of possible mineralization is located approximately 850 metres to the north-northeast and comprises variably propylitic-altered andesitic rocks hosting quartz veins with chalcopyrite and pyrite.
In 2004, 12 samples (192559 through 192570) from the area yielded values of up to 0.261 gram per tonne gold, 18.7 grams per tonne silver and greater than 1.00 per cent copper (Assessment Report 27633). It is not known if these were outcrop or float samples.
Work History
In 1981 and 1982, Golden Rule Resources Ltd. completed programs of geological mapping and geochemical (rock, silt and soil) sampling on the area as the QBX 1-12 claims.
In 1984, Newmont Exploration of Canada Ltd. completed a program geological mapping, geochemical (rock, silt and soil) sampling and ground magnetic and electromagnetic surveys on the area as the Lynx 1-7 claims.
In 1986, Toodoggone Gold Inc. completed a 278 line-kilometre airborne electromagnetic and magnetic survey on the area as the Fisher 1-2 and Wolverine 1-2 claims.
During 2004 through 2006, Stealth Minerals Limited completed exploration programs of soil and rock geochemical sampling, prospecting and geological mapping on the Mac 1-9 claims as a part of its Toodoggone project.
In 2017, Sable Resources Ltd. completed a helicopter-borne geophysical survey over the Bot property that included radiometric, magnetic and ZTEM data.
In 2018, Talisker Resources Ltd. conducted prospecting of geophysical anomalies (identified in the 2017 survey) located on the northern half of the Bot property. A total of 148 rock, silt and talus samples were collected and submitted for assay.