Great Northern Minerals (ASX: GNM)

This image highlights the strategic positioning of @GNM_ASX 𝘐𝘳𝘰𝘯 𝘉𝘶𝘵𝘵𝘦 𝘎𝘰𝘭𝘥–𝘚𝘪𝘭𝘷𝘦𝘳 𝘗𝘳𝘰𝘫𝘦𝘤𝘵 𝘪𝘯 𝘕𝘦𝘷𝘢𝘥𝘢, 𝗨𝗦𝗔, 𝗼𝗻𝗲 𝗼𝗳 𝘁𝗵𝗲 𝘄𝗼𝗿𝗹𝗱’𝘀 𝗹𝗲𝗮𝗱𝗶𝗻𝗴 𝗺𝗶𝗻𝗶𝗻𝗴 𝗷𝘂𝗿𝗶𝘀𝗱𝗶𝗰𝘁𝗶𝗼𝗻𝘀 𝗮𝗰𝗰𝗼𝗿𝗱𝗶𝗻𝗴 𝘁𝗼 𝘁𝗵𝗲 𝗙𝗿𝗮𝘀𝗲𝗿 𝗜𝗻𝘀𝘁𝗶𝘁𝘂𝘁𝗲’𝘀 𝟮𝟬𝟮𝟱 𝘀𝘂𝗿𝘃𝗲𝘆. It also outlines several key aspects of the project, including its location on the western edge of the prolific Battle Mountain–Cortez Trend and within the highly prospective Caetano Caldera setting. It also highlights the project’s well-defined low-sulphidation epithermal system, near-surface mineralisation, and the potential for deeper Carlin-style mineralisation. The map shows the Iron Butte Project in Nevada, highlighting its position in a globally recognised gold province with access to established infrastructure and exploration activity. #ASX #GNM #Nevada #IronButte #Mining #Exploration $GNM $GNM.ax

@GNM_ASX was featured in this latest @StockheadAU Top 5 article following the Company’s recent move into Nevada with the 𝗜𝗿𝗼𝗻 𝗕𝘂𝘁𝘁𝗲 𝗚𝗼𝗹𝗱–𝗦𝗶𝗹𝘃𝗲𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁. The article highlights the project’s established near-surface mineralisation, historical drilling success, and upside potential at depth within the prolific Battle Mountain–Cortez Trend. With plans underway for a maiden JORC-compliant resource and future drilling programs, Iron Butte continues to strengthen GNM’s growth strategy in a Tier 1 mining jurisdiction. Read the full article below. #ASX #GNM #Mining #Exploration $GNM $GNM.ax

@GNM_ASX $GNM Updated Corporate Presentation including the recent acquisition of the Iron Butte Gold-Silver project in Nevada. #Gold #Silver #ASX

@GNM_ASX has released its latest corporate presentation, highlighting the company’s growing exposure to rare earths, gold and antimony projects across Australia and the United States. Key highlights include: • Expansion of the Iron Butte footprint with new high-value exploration targets • Continued advancement of the Catalyst Ridge Project in California’s highly prospective Mountain Pass district • Strong positioning across critical minerals and precious metals amid increasing global demand • A clear exploration and development pathway aimed at unlocking shareholder value With a diversified portfolio and exposure to strategically important commodities, GNM continues to build momentum across its project pipeline. Check out the whole presentation here: cdn-api.markitdigital.com/apiman-gateway… #ASX #GNM #Mining $GNM $GNM.ax

@GNM_ASX (ASX: GNM) has announced a significant exploration update from the 𝗖𝗮𝘁𝗮𝗹𝘆𝘀𝘁 𝗥𝗶𝗱𝗴𝗲 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 in California, highlighting the scale and potential of the Antimony Gulch system within the Walker Lane Mineral Belt. Key highlights include: • Quartz–stibnite vein mapped over 1.25km strike length • Surface silicification zones exceeding 40m wide • Rock chip assays returning up to 7.1% antimony, 23.3 g/t silver and 0.4% tungsten • Historical workings identified along the mineralised corridor • Geological similarities noted with nearby epithermal gold systems, including Colosseum Detailed mapping and structural interpretation suggest the system remains open along strike and at depth, with multiple drill targets now defined across the project area. The conceptual geological model also points to potential deeper gold–silver mineralisation beneath the shallow antimony-tungsten-silver zones, reinforcing the broader exploration upside at Catalyst Ridge. Full announcement here: cdn-api.markitdigital.com/apiman-gateway… #ASX #GNM #GreatNorthernMinerals #California $GNM $GNM.ax

@GNM_ASX (ASX: GNM) has delivered a transformative 𝗠𝗮𝗿𝗰𝗵 𝗾𝘂𝗮𝗿𝘁𝗲𝗿, reshaping its portfolio while advancing key exploration assets. Key highlights from the March 2026 Quarterly Report: • Completed the divestment of Golden Ant, unlocking $2.0M and simplifying the asset base • Acquired the Iron Butte gold–silver project in Nevada, located in the highly prospective Battle Mountain–Cortez district • Strengthened cash position to ~$4.2M post quarter end • Planned DDIP geophysics at Douglas Creek to test for a potential porphyry copper–gold system • Continued advancement at Catalyst Ridge, with high-grade antimony results and permitting progress underway At 𝗗𝗼𝘂𝗴𝗹𝗮𝘀 𝗖𝗿𝗲𝗲𝗸, geophysics and prior drilling continue to point toward a large-scale system, with upcoming surveys set to refine drill targets. Meanwhile, Catalyst Ridge is shaping up as a structurally controlled antimony system with encouraging surface results and clear next steps toward drilling. The addition of 𝗜𝗿𝗼𝗻 𝗕𝘂𝘁𝘁𝗲 marks a strategic shift into a Tier 1 US jurisdiction, bringing an advanced-stage gold–silver project with existing drilling, near-surface mineralisation, and a pathway toward a maiden JORC resource. A quarter defined by portfolio optimisation, new asset acquisition, and a clear pipeline of exploration catalysts. Full announcement here: cdn-api.markitdigital.com/apiman-gateway… #ASX #GNM #Antimony #Gold #Silver #Mining #Exploration #Resources $GNM $GNM.ax

This geological map outlines the 𝗖𝗮𝘁𝗮𝗹𝘆𝘀𝘁 𝗥𝗶𝗱𝗴𝗲 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 area, showing @GNM_ASX' claim holdings in relation to surrounding geology, mineral occurrences, and neighbouring projects. The map highlights a complex mix of rock units across the region, along with key structural features and interpreted trends that help define exploration targets within the project area. GNM’s ground lies near the Mountain Pass rare-earth mine and is surrounded by multiple historic workings and mineral occurrences, including gold, copper, and rare-earth elements. The proximity to established operations and the presence of mapped structures and prospective geology reinforce the broader exploration potential across the project area. #ASX #GNM #GreatNorthernMinerals #Exploration $GNM $GNM.ax

This map shows the location of the Catalyst Ridge Project within the Walker Lane Mineral Belt, a well-known mineralised corridor extending across Nevada into California. The highlighted trend hosts numerous gold and copper deposits, with several established mining centres and prospects distributed along the belt. Catalyst Ridge is positioned within the southern part of this trend, surrounded by known deposits and historic mining activity. Its location within this highly prospective belt reinforces the regional-scale potential, with access to a proven geological setting that has supported multiple mineral discoveries. #ASX #GNM #GreatNorthernMinerals #Exploration $GNM $GNM.ax

This longitudinal section from the 𝗠𝗼𝗴𝗼𝗹𝗹𝗼𝗻 𝗗𝗶𝘀𝘁𝗿𝗶𝗰𝘁 provides a historical example of epithermal gold–silver mineralisation, showing how ore zones (highlighted in black) are distributed along a vein system. The dashed line marks a barren quartz vein near the surface, sitting above zones where mineralisation is preserved at depth. The image illustrates how erosion exposes mineralisation in lower topographic areas, while higher ground can conceal deeper ore beneath unmineralised quartz veins. This relationship supports the exploration model, highlighting the potential for concealed gold–silver zones beneath surface expressions that may appear barren. #ASX #GNM #GreatNorthernMinerals #Mining #Gold #Silver $GNM $GNM.ax

This conceptual long-section view illustrates the 𝗔𝗻𝘁𝗶𝗺𝗼𝗻𝘆 𝗚𝘂𝗹𝗰𝗵 system from south to north, showing the relationship between near-surface antimony–tungsten–silver mineralisation and deeper gold–silver zones. The upper portion highlights shallow 𝘴𝘵𝘪𝘣𝘯𝘪𝘵𝘦-𝘳𝘪𝘤𝘩 𝘻𝘰𝘯𝘦𝘴 associated with silicification, while the deeper yellow zone represents a potential 𝘨𝘰𝘭𝘥–𝘴𝘪𝘭𝘷𝘦𝘳 “boiling zone” target at depth. The image also shows how mineralisation is preserved beneath topographic highs to the north and is more exposed in lower areas to the south. Structural features such as faults and historical workings, including an adit and shaft, are mapped along the section, reinforcing the vertical continuity of the system and its potential to host multiple stacked mineralised zones. Read more: api.investi.com.au/api/announceme… #ASX #GNM #GreatNorthernMinerals $GNM $GNM.ax

Figure 3 shows the 𝗠𝗶𝗱𝗱𝗹𝗲 𝗥𝗶𝗱𝗴𝗲 area, with a quartz vein zone exposed along a rugged hillside and extending along strike toward the north-northwest. The vein appears as a lighter-coloured, resistant outcrop cutting through the surrounding host rock, forming a continuous mineralised corridor across the slope. The scale of the system is highlighted by the field geologist in the image, giving a clear sense of width and continuity. Surface expression of the vein, combined with its consistent orientation along the ridge, supports the interpretation of a well-developed structure with potential to extend further along strike. Check out the full announcement here: api.investi.com.au/api/announceme… #ASX #GNM #GreatNorthernMinerals $GNM $GNM.ax

Figure 2 shows the South Ridge area, where a fault-controlled zone is exposed at the surface, marked by a narrow, linear trench cutting through weathered rock. The structure is clearly defined, with fractured and sheared material visible along the contact, indicating a strong structural control on mineralisation. Surrounding outcrop shows oxidised, broken ground consistent with a faulted and altered system. Quartz–stibnite veinlets are visible within the shear zone, supporting the interpretation of mineralised fluid pathways along the structure. The presence of a caved decline further points to historical workings in the area, reinforcing the continuity of the vein system and its potential to extend along strike and at depth. Check out the full announcement here: api.investi.com.au/api/announceme… #ASX #GNM #GreatNorthernMinerals $GNM $GNM.ax

Figure 1 presents a detailed geological map of the A𝗻𝘁𝗶𝗺𝗼𝗻𝘆 𝗚𝘂𝗹𝗰𝗵 𝗽𝗿𝗼𝘀𝗽𝗲𝗰𝘁, highlighting a north–south trending quartz–stibnite vein (in red) surrounded by broader zones of silicification (outlined in purple). The map shows the continuity of the mineralised corridor across different host rocks, with key structural features and section lines (A–A’, B–B’, C–C’) helping define the scale and orientation of the system. Assay results are plotted along the vein, with high-grade antimony and silver values linked to quartz veining and stibnite mineralisation. Historical workings, including an adit, further support the presence of a well-developed system with potential to extend along strike and at depth. Read the full announcement here: api.investi.com.au/api/announceme… #ASX #GNM #GreatNorthernMinerals $GNM $GNM.ax

@GNM_ASX (ASX: GNM) continues to advance its Nevada strategy, with its Iron Butte deal drawing attention in the latest M&A coverage. The shift from lease to acquisition highlights the Company’s intent to move quickly on a project with established mineralisation and clear exploration upside. Read the full article: mining.com.au/ma-monday-grea… #ASX #GNM #Mining #GreatNorthernMinerals $GNM $GNM.ax

@GNM_ASX (ASX: GNM) has delivered a compelling exploration update from its 𝗖𝗮𝘁𝗮𝗹𝘆𝘀𝘁 𝗥𝗶𝗱𝗴𝗲 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 in California; detailed mapping confirmed the scale and potential of the Antimony Gulch system. The quartz–stibnite vein has now been mapped over 1.25km, with surface widths exceeding 40 metres in places, supporting a vertically zoned epithermal system with antimony, tungsten, and silver near the surface and gold–silver potential at depth. Key highlights: • Antimony Gulch vein extended to 1.25km strike length • Surface silicification widths exceeding 40m • High-grade results including up to 7.1% antimony, 0.4% tungsten and 23.3 g/t silver • Geological setting comparable to the nearby Colosseum Gold deposit • Located within the highly endowed Walker Lane Mineral Belt With permitting underway and geophysical surveys planned to refine drill targets, GNM is progressing toward a drilling program designed to test both near-surface antimony and deeper gold–silver mineralisation. Full announcement here: tinyurl.com/zjv2s6mm #ASX #GNM #Antimony #Gold #Silver #Mining #Exploration $GNM $GNM.ax

@GNM_ASX (ASX: GNM) is building a presence across some of the most prospective gold and silver belts in the United States. This map highlights the Company’s project locations, including the Iron Butte Gold–Silver Project in Nevada, positioned along the prolific Battle Mountain–Cortez Trend, and Catalyst Ridge in California within the Walker Lane Mineral Belt. Surrounded by major deposits and established mining trends, both projects sit in highly active and well-endowed regions, reinforcing the strategic positioning of GNM’s portfolio. With exposure to multiple mineralised belts and clear exploration upside across both assets, GNM is advancing a pipeline aimed at delivering near-term resource growth and longer-term scale. #ASX #GNM #Gold #Silver #Mining #Exploration #Nevada $GNM $GNM.ax

Catalyst Ridge extends to 1.25km, revealing high-grade antimony, tungsten, silver, and gold-silver potential for $GNM in Walker Lane with @gnm_asx. discoveryalert.com.au/news/great-nor…