Lundin Gold’s 1,035 g/t hit at Fruta del Norte: mine life and design notes for engineers
Reviewed by Tom Sullivan

First reported on MINING.com
30 Second Briefing
Lundin Gold has reported record grades at its Fruta del Norte district in Ecuador, including a 3-metre Bonza Sur intercept grading 204.26 g/t gold from 140 m, with a 60 cm sub-interval at 1,035.60 g/t, and 5.5 m at 13.75 g/t gold and 50.8 g/t silver from 715 m in hole BLP-2026-483-D2. The newly defined Quebrada Dorada vein system, 2 km south of Bonza Sur, has returned 13 m at 6.53 g/t gold from ~195 m and extends mineralisation over 2.7 km, open to the south. With three rigs at Bonza Sur and two at Quebrada Dorada, Lundin is targeting higher-grade zones adjacent to existing Fruta del Norte South underground development to extend the current 12-year mine life and build on 5.85 Moz of proven and probable reserves.
Technical Brief
- Hole BLP-2026-483-D2 at Bonza Sur cut 5.5 m at 13.75 g/t Au and 50.8 g/t Ag from 715 m.
- Within that interval, 3.2 m from 718 m graded 23.21 g/t Au and 76.93 g/t Ag, indicating strong local grade zoning.
- Another Bonza Sur hole, BLP-2026-475-D2, returned 5.5 m at 4.59 g/t Au from ~515 m downhole.
- Bonza Sur mineralisation extends to surface in a large, shallow epithermal system over ~2 km strike.
- Gold at Bonza Sur is dominated by disseminated mineralisation, implying potential for bulk underground stoping rather than narrow-vein only.
- Three drill rigs at Bonza Sur are tightening spacing to resolve continuity and geometry of higher-grade shoots.
- Quebrada Dorada mineralisation occurs in multiple quartz–chalcedony vein generations with hydrothermal breccias, stockworks, native gold and minor sulphides.
- Drilling at Quebrada Dorada has outlined mineralisation over ~2.7 km along strike, with two rigs currently operating and the system open southwards.
Our Take
Lundin Gold’s record reserve base at Fruta del Norte (5.85 Moz at 7.09 g/t) comes as Ecuador’s tax authority is pursuing a US$154 million claim against the company, suggesting that strong asset quality may be critical to absorbing potential fiscal shocks without derailing exploration at Bonza Sur and Quebrada Dorada.
The new high-grade gold and silver hits at Bonza Sur and Quebrada Dorada build on earlier bonanza intercepts reported in May 2026 at Fruta del Norte, indicating that the broader Fruta del Norte property in Ecuador is emerging in our coverage as one of the few consistently ultra-high-grade gold camps among Latin American projects.
With seven porphyry centres already identified near Fruta del Norte in July 2026 coverage and now an 8 km mineralised trend tying in Bonza Sur and Quebrada Dorada, Lundin Gold is quietly evolving from a single-mine gold producer into a district-scale gold–copper–silver play, which could alter how Canadian institutions in Toronto and Vancouver value its long-term pipeline.
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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