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    Astral’s high-grade gold at Wattle Dam: design and geotech notes for mine planners

    March 29, 2026|

    Reviewed by Tom Sullivan

    Astral’s high-grade gold at Wattle Dam: design and geotech notes for mine planners

    First reported on Australian Mining

    30 Second Briefing

    Astral Resources has reported high-grade gold intersections from reverse circulation drilling at the Wattle Dam prospect within its Spargoville gold project in Western Australia, targeting extensions to the historically high-grade Wattle Dam underground mine. The programme is testing down-plunge and along-strike positions of the known lode system, using closely spaced RC holes to refine the geometry of the mineralised shoot and assess potential for resource growth near existing underground development. Results will guide follow-up diamond drilling, pit design options and geotechnical assessment of remnant and new stoping blocks.

    Technical Brief

    • Astral is targeting extensions to a historically high-grade lode system previously mined by open pit and underground methods.
    • The company is specifically testing down-plunge continuity of the known shoot, a common control in Archean lode gold.
    • Along-strike drilling aims to identify parallel or offset shoots that could support multiple small-scale stoping panels.
    • RC drilling density is being tightened to improve structural interpretation before committing to more expensive diamond tails.
    • Results will directly influence whether remnant mining, cutback of the old pit, or new underground development is prioritised.
    • Similar brownfields gold assets in the Eastern Goldfields have used this staged RC–diamond approach to fast-track restart decisions.

    Our Take

    Within our 356 gold‑keyword pieces, Western Australia features heavily, signalling that Astral Resources’ Spargoville gold project is competing for capital and contractor capacity in one of the most crowded exploration jurisdictions in our coverage.

    High‑grade hits at Wattle Dam position Astral to benefit from the kind of productivity and uptime gains highlighted in the MASPRO supply-chain article, where reduced downtime for crushers and drills is critical to monetising narrow, high‑value gold zones.

    If Spargoville advances towards development, the structural testing emphasis seen in the AMS infrastructure piece suggests early investment in verifying gantries and plant platforms will be important for a small, high‑grade gold operation seeking rapid ramp‑up in Western Australia.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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