Montero Mining intersects porphyry, pyrite at depth in latest Elvira drill hole

Mining Rare Earths & Specialist Minerals Written by: Angela Harmantas 12:20 Tue 04 Aug 2026 --> Proactive has a commercial relationship with Montero Mining and Exploration Ltd. This article was produced independently under Proactive's Editorial Standards Policy . Disclaimer No investment advice About this content Editorial Standards & Policies Share article About this content × About Angela Harmantas Angela Harmantas is an Editor at Proactive. She has over 15 years of experience covering the equity markets in North America, with a particular focus on junior resource stocks. Angela has reported from numerous countries around the world, including Canada, the US, Australia, Brazil, Ghana, and South Africa for leading trade publications. Previously, she worked in investor relations and led the foreign direct investment program in Canada for the Swedish government. She earned a Bachelor of... Read more About the publisher Proactive financial news and online broadcast teams provide fast, accessible, informative and actionable business and finance news content to a global investment audience. All our content is produced independently by our experienced and qualified teams of news journalists. Proactive news team spans the world’s key finance and investing hubs with bureaus and studios in London, New York, Toronto, Vancouver, Sydney and Perth. We are experts in medium and small-cap markets, we also keep our community up to date with blue-chip companies, commodities and broader investment stories. This is content that excites and engages motivated private investors. The team delivers news and unique insights across the market including but not confined to: biotech and pharma, mining and natural resources, battery metals, oil and gas, crypto and emerging digital and EV technologies. Use of technology Proactive has always been a forward looking and enthusiastic technology adopter. Our human content creators are equipped with many decades of valuable expertise and experience. The team also has access to and use technologies to assist and enhance workflows. Proactive will on occasion use automation and software tools, including generative AI. Nevertheless, all content published by Proactive is edited and authored by humans, in line with best practice in regard to content production and search engine optimisation. Montero Mining and Exploration Ltd ( TSX-V:MON OTC:MXTRF ) View Price & Profile Montero Mining intersects porphyry, pyrite at depth in latest Elvira drill hole Published: 12:20 04 Aug 2026 EDT Montero Mining and Exploration Ltd (TSX-V:MON, OTC:MXTRF) said a new drillhole at its Elvira Gold Project in northern Chile hit strong signs of a gold-bearing hydrothermal system, with pyrite mineralization found at depth. The hole, MON-ELV-02, was drilled to 625.25 metres and targeted a zone the company flagged as high-priority using geological mapping, geochemistry, geophysics and AI-assisted data modelling. Logging showed altered volcanic rock near surface sitting on top of an intrusive rock body called a porphyry, the type of formation often associated with large gold and copper deposits. Pyrite, a mineral commonly linked to gold mineralization, showed up repeatedly below about 253 metres, including at the very bottom of the hole. Trace copper minerals were also spotted but need lab confirmation. Dr. Tony Harwood, President and CEO of Montero, said the logging results back up the company's target model for Elvira. “The hole intersected the predicted volcanic sequence and underlying porphyry, together with high-sulphidation alteration and pyrite corresponding spatially to the high-chargeability anomaly,” Harwood said in a statement. “Assay results will determine the metal content of the hydrothermal system." The hole was drilled next to an old well, EL-12, drilled decades earlier by Buena Vista Gold Corp to about 282 metres, where Buena Vista had reported a strong hit. Montero's new hole went more than 340 metres deeper than that old test. Core samples are now being cut and sent to the lab, with results expected to sharpen the company's next round of drill targets. Continue reading