Great Western's Copper Portfolio

Key Facts

  • Great Western has six copper claim groups containing multiple prospects, including an established resource with expansion potential (M2).
  • At M2 (Black Mountain) we have a JORC compliant Indicated and Inferred copper Resource of 4.3 million tonnes at 0.45%. Additional JORC compliant Exploration Targets of 10 to 17 million tonnes at 0.4% to 0.6% copper.
  • The broader copper prospectivity is illustrated by the close clustering of these targets & relationships to noted regional controlling structures.


Black Mountain

M2 Indicated and Inferred Resource of 4.3 Mt @ 0.45% Cu Open along-strike for 3 km to NE with numerous Cu showings and workings, 1 km to SW with associated IP anomaly, and down-dip to SE.

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Eastside Mine

High grade copper ores previously extracted at Eastside Mine.

Mapping and soil sampling has identified mineralised fault corridors.

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High grade oxidised copper mineralisation is exposed along a northeast trend. High grade silver present in grab samples.

RC hole drilled in 2018; best intercept of 27.4 m at 0.35% Cu.

Copper workings and showings line up with M4 breccia in JS to southeast and show similarities to the mineralisation at M2.

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Jack Springs

Three diamond holes drilled in 2018, large quartz copper breccia intersected from 106.2 m, including 1.8 m at 0.74% Cu from 121 m.

Strongest parts of a significant E-W trending IP anomaly lie exactly in line with the structure as modelled. This anomaly is yet to be drilled.

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Rock House

Copper prospectivity was identified at Rock House Group during exploration to follow-up on positive gold intercepts in 2021. Hole RHRC010 identified a zone of 41.15 m at 0.13 % Cu, starting at 15.24 m, including 3.04 metres at 0.23% Cu and 6.10 metres at 0.24% Cu, starting at 29.96 and 35.05 m, respectively. These intercepts occurred beneath a surface gossan.

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Multiple 2 km strike length quartz veins with numerous historic adits.

Veins up to 2 m thick and have returned surface grab assays of 9.84 g/t Au, 4.99 g/t Au and 1.21% Cu.

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