The East Cirque occurrence is located on an unnamed tributary of the Chukachida River, approximately 1 kilometre south west of Mount McNamara and 263 kilometres northwest of the community of Germansen Landing.
The area is underlain by marine sedimentary rocks and volcanic rocks of the Upper Triassic Stuhini Group. These have been intruded by the Early Jurassic Black Lake intrusive suite consisting of generally medium-grained granodiorite to quartz monzonite.
The East Cirque showing is underlain by Stuhini Group basalts and is moderately gossanous as observed from satellite imagery. A 2017 airborne geophysical survey flown over the Bot property indicated a deep chargeability and magnetic anomaly which may be indicative of a buried copper porphyry system as is seen in other areas of the Toodoggone gold camp (Assessment Report 38272).
The reconnaissance-style sampling at East Cirque produced a broad, weakly anomalous zone of copper over the southern portion of the sampled drainage and revealed the area had been affected by chlorite-epidote-pyrite and rarely sericite-pyrite alteration. Rare malachite and one instance of chalcopyrite mineralization was noted.
In 2018, a grab sample (4101) from an outcrop of basalt hosting chalcopyrite, pyrite and malachite on fracture surfaces yielded 0.759 per cent copper and 4.1 grams per tonne silver, whereas a float sample (4042) of basalt hosting calcite veining with pyrite and chalcopyrite, located approximately 550 metres to the north, yielded 1.72 grams per tonne gold (Assessment Report 38272).
Another zone of possible mineralization is located approximately 1.5 kilometres to the southeast near the head of the west-facing valley and comprises a variably propylitic-altered feldspar porphyry dacite and granite hosting quartz veins with chalcopyrite and pyrite.
In 2004, two samples (185313 and 185314) from this zone yielded 0.527 and 0.985 per cent copper, respectively (Assessment Report 27633). It is not known if these were outcrop or float samples.
Work History
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.
From 2004 to 2006, Stealth Minerals Limited completed exploration programs of soil and rock geochemical sampling, prospecting and geological mapping as a part of its Toodoggone project.
In 2017, Sable Resources Ltd. completed a helicopter-borne geophysical survey over the Bot property which 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, some coincident with historically reported mineralization of which the East Cirque is included. A total of 148 rock, silt and talus samples were collected and submitted for assay.
