The North Grace occurrence is located on a southeast-facing slope, northwest of the Finlay River and approximately 6.2 kilometres northeast of the rivers’ junction with the Firesteel River.

The region is situated at the southern end of the Toodoggone Gold Camp, which lies within the eastern margin of the Intermontane Belt and is underlain by a northwest-trending belt of Paleozoic to Neogene sediments, volcanics and intrusions. The Electrum prospect is situated within a Mesozoic volcanic arc assemblage bounded to the east by the Omineca Belt and to the west and southwest by the Sustut and Bowser basins.

Permian Asitka Group crystalline limestones are the oldest rocks exposed in the region. They are commonly in thrust contact with Upper Triassic Takla Group andesite flows and pyroclastic rocks. These Takla rocks have been intruded by plutons and other bodies of the mainly granodiorite to quartz monzonite Early Jurassic Black Lake Suite and are in turn unconformably overlain by or faulted against Lower Jurassic calc-alkaline volcanics of the Toodoggone Formation, Hazelton Group.

The dominant structures in the area are steeply dipping faults that define a prominent regional northwest structural fabric trending 140 to 170 degrees. In turn, high-angle, northeast-striking faults (approximately 060 degrees) appear to truncate and displace northwest-striking faults. Collectively these faults form a boundary for variably rotated and tilted blocks underlain by monoclinal strata.

The occurrence area is underlain predominantly by granodiorite of the Black Lake stock with several roof pendants of grey micaceous metasiltstone and white, coarsely crystalline marble of the Asitka and/or Takla groups. Late porphyritic monzonite dikes strike northwest, intruding both granodiorite and metasedimentary rocks.

Locally, a 20-centimetre-wide silica-flooded zone in a strongly potassium feldspar–altered quartz monzonite hosts strongly chlorite-altered quartz veinlets. The veinlets trend 291 degrees.

In 2002, a grab sample (02BM-212) assayed 6.09 grams per tonne gold, 35.2 grams per tonne silver and 0.745 per cent copper (Assessment Report 27160).

Work History

The area has been explored in conjunction with the nearby Grace 1 (MINFILE 094E 129) occurrence and a complete exploration history can be found there.