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    Greatland’s West Dome expansion: design and mine-life insights for planners

    November 28, 2025|

    Reviewed by Joe Ashwell

    Greatland’s West Dome expansion: design and mine-life insights for planners

    First reported on Australian Mining

    30 Second Briefing

    Greatland Resources is accelerating expansion of the West Dome underground project at Telfer after new drilling confirmed additional mineralisation, signalling scope to extend mine life at the ageing copper–gold operation. Step-out holes beneath the current West Dome orebody have intersected wider and higher-grade zones than existing reserves, supporting updated resource modelling and potential redesign of underground stopes. For geotechs and planners, the work points to deeper development levels, revised ground support regimes and possible changes to ventilation and haulage layouts within the Telfer underground complex.

    Technical Brief

    • For similar mature copper–gold mines, such brownfields underground extensions can defer closure and smooth production profiles.

    Our Take

    Telfer-linked work in Australia appears frequently in our mining project coverage, signalling that brownfield underground expansions like West Dome are currently favoured over new greenfield builds in the region.

    Within the 194 tag-matched ‘Projects’ and ‘Contract Award’ pieces, most Australian items involve schedule-driven underground scopes, so acceleration at the West Dome underground project is likely to tighten contractor capacity and pricing for similar work in Western Australia.

    For Greatland Resources, repeated mention in our recent Mining category suggests it is transitioning from explorer to operator status, which typically changes risk allocation in future contract awards around Telfer-style assets.

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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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