Premier1 zeroes in on untouched WA gold prize

Premier1 is primed to pull the trigger on a reverse circulation (RC) drill campaign at Rochefort, a largely untouched prospect within its Abbotts North project in Western Australia’s Murchison region, 35 kilometres north of Meekatharra.

Approvals and heritage clearances have now been locked in ahead of a late May start to test a tantalising gold target defined by a broad 400m by 350m soil anomaly, standout surface grades and a structurally charged setting.

The opening program will drill up to five RC holes for about 1,000 metres, homing in on the heart of the anomaly before stepping out along strike and down dip to map scale and continuity.

Rochefort, while unexplored to date and showing no evidence of historical workings, sits in proximity to proven ground. The prospect lies within the Abbotts Greenstone Belt, 20 kilometres north of the producing Crown Prince deposit, which hosts 2.2 million tonnes at 3.9g/t gold for 279,000 ounces. Despite the belt’s strong track record for high-grade gold, swathes of the mineralised corridor remain lightly tested with modern exploration.

The first-pass strike has been built around converging datasets of geochemistry, rock chips and geophysics, all pointing towards a potentially coherent gold system. The company says Rochefort represents a compelling early-stage discovery opportunity with genuine scale potential.

At surface, the prospect is already sending strong signals.

Soil sampling has outlined a consistent gold footprint peaking at 30 parts per billion (ppm) gold, with “UltraFine” assays rising to 42.9ppm. Rock chips have delivered hefty grades up to 11.7 grams per tonne (g/t) gold from north–south trending quartz-hematite veins, hinting at a mineralised network with genuine grade potential.

Under the geological hood, the mineralisation is hosted within highly fractionated quartz dolerites, a fertile setting seen across major Yilgarn gold camps. Ground gravity and airborne magnetic data, which originally pinpointed the target, have highlighted a structurally complex corridor where north–south trends intersect a broader northwest contact, a classic structural sweet spot for fluid flow and gold deposition.

What we’re seeing at Rochefort is all the hallmarks of a gold mineralised system in the same Abbotts Greenstone Belt that hosts New Murchison Gold’s producing Crown Prince deposit. But unlike almost every other prospect across this significantly underexplored belt, there is no evidence of historical workings.

The drilling blitz has been designed to angle into the interpreted vein systems and alteration halo at optimal orientations, with the collar positions providing clean cross-sectional coverage across the anomaly. Step-out holes will stretch the search under shallow cover to the north and south, chasing extensions that could quickly expand the footprint.

Results from the initial holes will be used to guide a broader follow-up program aimed at defining scale, geometry and potential growth corridors within the system.

Recently, the region has emerged as something of a hotspot. Nearby, New Murchison Gold has lifted the area’s prospectivity with its high-grade Crown Prince deposit, which hosts 2.2 million tonnes grading 3.9g/t for 279,000 ounces of gold. Meanwhile, drilling at its Lydia prospect, two kilometres west of Crown Prince and 20 kilometres south of Rochefort, has delivered strong intercepts from similar dolerite-hosted shear zones, such as 3m at 32.9g/t gold.

Across Premier1’s portfolio, Abbotts North sits to the north-east of its Yalgoo gold project, with the two separated by 300 kilometres of Western Australian greenstone belt.

Yalgoo covers a larger, more advanced footprint hosting multiple prospects and known mineralisation, while Abbotts North shapes as a clean-slate discovery play where scale is still emerging, giving the company exposure to both steady system growth and blue-sky upside.

The company says its gold strategy is to target technically robust systems, apply disciplined exploration and build a pipeline of prospects capable of delivering discovery-driven growth.

Gold continues to command attention, with prices holding near US$4500 (A$6800) per ounce, supported by firm demand and its role as a global safe-haven asset. In a jurisdiction such as Western Australia, where infrastructure and processing pathways are well established, discoveries near existing operations can often move swiftly along the development curve.

With the drill bit about to bite, Rochefort is shifting from blueprint to breakthrough. If the subsurface story matches the surface signals, this maiden campaign could be the spark that lights up a new gold play in a belt that still holds plenty of untapped potential.

Is your ASX-listed company doing something interesting? Contact: matt.birney@wanews.com.au