Brightstar Intersects Visible Gold Deep at Two Mile Hill

Brightstar Resources has intersected visible gold in multiple deep diamond drillholes at Two Mile Hill, part of its Sandstone Gold Project. The drilling extends beyond 550m depth, underpinning plans for an underground mining study in the pre-feasibility study due later this year.

  • Visible gold found in multiple deep drillholes
  • Drilling targets resource upgrade for pre-feasibility study
  • Two Mile Hill-Shillington resource totals 753koz at 1.5g/t Au
  • Potential underground mining to complement open pits
  • Assay results pending to confirm grades
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Visible Gold Intersected Deep in Two Mile Hill Drilling

Brightstar Resources (ASX:BTR) has revealed multiple visible gold intersections in ongoing diamond drilling at its Two Mile Hill deposit within the Sandstone Gold Project. The drill program, which has reached depths exceeding 550 metres, is designed to increase confidence in the mineral resource for inclusion in a pre-feasibility study (PFS) targeted for the second half of 2026.

Visible gold is hosted predominantly within thin quartz veins forming sheeted arrays inside a tonalite intrusion and adjacent mafic volcanic rocks. This tonalite-hosted mineralisation accounts for the majority of the current Two Mile Hill resource estimate of 664,000 ounces at 1.6 grams per tonne gold. Nearby, the Shillington deposit adds a further 91,000 ounces at 1.5 grams per tonne, bringing the combined Two Mile Hill-Shillington resource to 753,000 ounces at 1.5 grams per tonne.

Drilling Supports Underground Mining Potential

The current ~9,100-metre reverse circulation and diamond drilling program aims to infill deeper inferred resource areas to upgrade them to indicated status. This upgrade is crucial for the upcoming PFS, which is already evaluating a large-scale underground mining operation at Two Mile Hill to complement the open pit mines planned across the Sandstone Project.

Brightstar’s Managing Director, Alex Rovira, highlighted the significance of visible gold intersections across multiple holes and intervals, noting that these findings reinforce the potential economic viability of underground mining. The drilling’s depth and extent of mineralisation demonstrate a substantial tonnage below surface, which could meaningfully contribute to project economics.

While assay results are still pending, the presence of visible gold alongside sulphide minerals such as pyrite, chalcopyrite, sphalerite, and galena provides encouraging geological evidence. The company is advancing studies to optimise mining methods and integrate underground operations into the broader Sandstone development plan.

Sandstone Project Positioned for Growth Amid Goldfields Progress

The Two Mile Hill deposit sits within Brightstar’s broader Sandstone Gold Project, which hosts a total resource of 2.4 million ounces at 1.5 grams per tonne gold. This complements the company’s advancing Goldfields Hub, where a recently greenlit 1.5Mtpa processing plant at Laverton is set to commence production in mid-2027, backed by full funding and regulatory approvals.

Brightstar’s strategy to develop both hubs in tandem aims to position it as a mid-tier gold producer by 2029, with the Sandstone Project expected to add significant scale. The current drilling and resource upgrade efforts at Two Mile Hill fit within this growth trajectory, potentially accelerating the timeline for underground mining and production expansion.

These developments come on the heels of the company’s Goldfields construction underway and pre-feasibility study targets in 2H 2026, reflecting a concerted push to unlock value across its Western Australian assets.

Bottom Line?

Two Mile Hill’s visible gold intersections deepen Brightstar’s underground mining prospects, but assay confirmation will be key to validating economic potential.

Questions in the middle?

  • Will assay results confirm the grades suggested by visible gold observations?
  • How will the underground resource upgrade impact the overall Sandstone mine plan and economics?
  • What timeline can investors expect for a Final Investment Decision on the Sandstone Project’s underground component?