Great Boulder Resources Returns 8m at 39.9g/t Au at Peak Hill, Flagging Upgrade to 481,000oz Resource

Sonal Goyal

09 November 2026 03:33 PM AEDT

Great Boulder Resources Returns 8m at 39.9g/t Au at Peak Hill, Flagging Upgrade to 481,000oz Resource

Image Source: Krish Capital Pty Ltd

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Great Boulder Resources (ASX:GBR) has reported high-grade gold drilling results from three deposits at its Peak Hill Gold Project in Western Australia, with the company disclosing that the results will feed into a resource update for the project's existing 481,000-ounce gold inventory.

Key Points

Best intersection at Golden Treasure returned 8m at 39.9g/t Au from 58m in hole GJRC094, described as the highest-grade result on a grams-metres basis ever drilled at the deposit
Drilling has confirmed continuity between the Jubilee and Golden Treasure deposits, allowing them to be modelled as a single resource
Durack drilling approximately 400m southwest of the central resource area returned 11m at 6.36g/t Au from surface in GDRC071
Enigma drilling returned 7m at 6.34g/t Au from 36m in GERC062 and 3m at 6.44g/t Au from 51m in GERC074
Mt Pleasant is identified as the next area for intensive RC drilling following completion of a diamond hole in October to confirm vein orientations

Golden Treasure Drilling Results and Jubilee Continuity

Drilling at the Golden Treasure deposit, located within the Peak Hill Gold Project 120 kilometres north of Meekatharra in the Murchison region of Western Australia, returned multiple high-grade intersections. The standout result of 8m at 39.9g/t Au from 58m in hole GJRC094 is the best intersection, on a grams-metres basis, ever drilled at Golden Treasure. Additional highlights included 4m at 39.3g/t Au from 30m in GJRC054, 16m at 6.36g/t Au from 48m in GJRC091, and 4m at 23.9g/t Au from 112m in GJRC099. The drilling confirmed gold mineralisation is continuous between Jubilee and Golden Treasure, enabling both to be modelled and estimated as a single resource. No previous resource estimate has been completed for the Golden Treasure area.

Durack Deposit Extends Over 1.5 Kilometres of Strike

At the Durack deposit, RC drilling tested areas along strike and to the southwest of the central resource area. A hole drilled approximately 400 metres southwest of Durack returned 11m at 6.36g/t Au from surface in GDRC071, situated on the southwestern edge of previous drilling and on the margin of the Durack resource. Drilling approximately 1.5 kilometres northwest along strike intersected high-grade gold in an area previously identified by historic RC drilling, with highlights including 10m at 6.40g/t Au from 116m in GDRCD024 and 7.6m at 6.42g/t Au from 69.8m in GDDD001. The filing states the Durack area spans a strike length of over 1.5 kilometres and remains under-explored.

Enigma Definition Drilling and Project Pathway

At the Enigma deposit, a small number of holes were drilled to improve definition at the northwestern and southeastern ends of the deposit. Results included 7m at 6.34g/t Au from 36m in GERC062 and 3m at 6.44g/t Au from 51m in GERC074. The Enigma deposit is approximately 800 metres long and remains open along strike, particularly to the southwest where historical drilling has identified gold over an additional two kilometres of strike. The filing states Peak Hill has a pathway to production and cashflow under an ore purchase agreement with Westgold, described as the company's largest shareholder. Drilling is continuing across the project.

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