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    Fortuna’s deeper Lindero pit pushback: design and scheduling notes for engineers

    October 22, 2026|

    Reviewed by Joe Ashwell

    Fortuna’s deeper Lindero pit pushback: design and scheduling notes for engineers

    First reported on MINING.com

    30 Second Briefing

    Fortuna Mining is evaluating a deeper pushback at its Lindero open pit in Argentina’s Puna after hole LDH-272 cut 350 m at 0.96 g/t Au from surface, including 98 m at 0.91 g/t below the current pit design, with LDH-259 returning 236 m at 0.85 g/t and 94 m below-pit at 0.66 g/t. Both below-pit intervals exceed the 0.54 g/t reserve grade for Lindero’s 64.4 Mt proven and probable heap-leach reserves, currently supporting a nine-year mine life and 92,000–102,000 oz/y guidance. Fortuna has expanded 2026 diamond drilling to 8,534 m in 31 holes and plans updated resource, reserve and pit designs in Q1 next year, which could materially alter strip ratios, slope configurations and long-term scheduling.

    Technical Brief

    • Below-pit mineralisation sits in a roughly circular porphyry-related body, complicating true-width estimation and geostatistics.
    • Any deeper pit design will need to reconcile added ounces with haul profiles, slope stability and leach pad scheduling.

    Our Take

    In our database, Fortuna Mining’s 2026 capital plan shows US$41 million earmarked for Lindero in Salta, so the above-reserve grades below the current pit shell strengthen the case for that spend to prioritise pushbacks and mine-life extension over greenfield Latin American gold options.

    The Lindero intercepts grading well above the 0.54 g/t reserve average sit alongside Fortuna’s Séguéla expansion in Côte d’Ivoire, signalling a portfolio tilt towards assets where incremental drilling can quickly convert into higher-margin ounces rather than relying solely on new project builds.

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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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