Project Overview
Magno Project | Cassiar, British Columbia
A District-Scale Polymetallic Silver and Tungsten Critical Minerals Opportunity
Note: Grab samples are selective by nature and may not represent average grades of mineralization on the property.
A Large, Consolidated Land Package in the Cassiar District of Northern BC
GoldHaven Resources’ Magno Project is a district-scale polymetallic exploration asset in the Cassiar District of northwestern British Columbia. The project spans more than 37,200 hectares in one of Canada’s most prospective and infrastructure-supported mineral belts. The large footprint gives GoldHaven multiple target types within one consolidated district-scale system — a key advantage as the Company moves toward systematic geophysics, 3D modelling, and drilling.
Magno is located near the historic mining town of Cassiar and benefits from strong infrastructure, including regional road access, nearby service centres, and proximity to an established mineral exploration and mining corridor.
Magno hosts a large intrusion-related hydrothermal system with multiple mineralization styles, including high-grade silver-lead-zinc carbonate replacement mineralization, tungsten-rich skarn systems, copper-bearing intrusive rocks and critical minerals including indium, bismuth, and tellurium.
GoldHaven has advanced Magno rapidly through 2025 surface exploration, property-wide geochemical interpretation, strategic claim expansion, airborne geophysics planning, 3D geological modelling, and the submission of a 2026 drill permit application. The Company is now moving toward a targeted 2026 drill program focused on the Magno Zone, D Zone, and Kuhn Zone.
Magno map location with proximity to nearby companies
Magno sits within the Cassiar Terrane, where carbonate-bearing sedimentary rocks and clastic units are intruded by phases of the Cassiar Batholith. This geological setting is favourable for stacked mineralization styles, including CRD, skarn, porphyry, and polymetallic systems.
GoldHaven’s 2025 work defined a property-scale metal zonation pattern consistent with a porphyry-related source system. The model transitions from proximal copper-gold-silver ± bismuth-tellurium ± tungsten, through silver-lead-zinc replacement-style mineralization, to more distal structurally controlled zinc-rich and skarn-related zones.
This zonation is central to the Magno investment thesis: the project is not defined by one showing or one commodity. It is emerging as a large, multi-phase mineral system with precious metals, base metals, and critical minerals distributed across multiple corridors.
The Magno and D Zones are priority targets for high-grade silver-lead-zinc carbonate replacement-style mineralization. GoldHaven’s 2025 surface exploration program confirmed significant grades across the property, including:
Tungsten Skarn Potential at Kuhn, Dead Goat, and Vines Lake
Tungsten has become one of the most important critical-mineral components of the Magno story.
GoldHaven confirmed anomalous tungsten mineralization at the historical Kuhn and Dead Goat showings and identified a newly recognized tungsten zone at Vines Lake, where sampling returned up to 6,550 ppm W. The 2025 program returned 32 samples above 1,000 ppm W, with multiple results between 500 and 5,000 ppm W across Kuhn and Dead Goat.
The Kuhn and Dead Goat zones are interpreted as structurally controlled skarn systems, with tungsten most strongly developed in diopside-garnet skarn assemblages. Approximately 1.3 kilometres of anomalous tungsten mineralization has been defined at the Kuhn target, supporting district-scale tungsten and critical-mineral potential.
With tungsten recognized as a critical mineral due to its role in defense, aerospace, tooling, electronics, and energy infrastructure, Magno offers investors exposure to a strategic commodity in a stable North American jurisdiction.
Tungsten samples from the 2025 Field Program at the Kuhn and Dead Goat Zones.
Expanded Target Pipeline: Lamb Mountain, Cassiar Moly, and Lang Creek
The Kuhn area hosts a well-developed skarn system previously drilled by Shell Canada, confirming scheelite (tungsten) and molybdenite. Tungsten is recognized globally as a critical mineral due to its:
Lamb Mountain — tungsten-molybdenum skarn mineralization, with historical drilling reporting 0.36% WO₃ over 24.9 metres, including 0.49% WO₃ over 16.7 metres;
Cassiar Moly — intrusion-related molybdenum mineralization, with historical samples reported up to 14.50% MoS₂ and 0.49% W;
Lang Creek — polymetallic VMS-style mineralization, with historical Cominco drilling outlining a near-surface massive sulphide lens grading 1.52% Cu and 0.90% Zn, with associated gold and silver values
These occurrences strengthen GoldHaven’s interpretation of Magno as a district-scale, multi-phase polymetallic system. Several zones remain open or underexplored, adding optionality beyond the current Magno, D Zone, and Kuhn drill priorities.
Geology map showing the area of the airborne survey as well as the high priority zones within the Magno project emphasizing the Kuhn, D Zone, Magno zones.
Note: Historical results have not been verified by a Qualified Person on behalf of GoldHaven and should not be relied upon.
High priority zones within the Magno project emphasizing Kuhn, D Zone, Magno.
GoldHaven is advancing a disciplined 2026 exploration program at Magno. The Company has submitted its permit application for the 2026 drill program and is targeting three priority areas:
Magno Zone — high-grade silver-lead-zinc CRD-style mineralization
D Zone — additional CRD-style mineralization with strong Ag-Pb-Zn values;
Kuhn Zone — tungsten-rich skarn mineralization with associated base metals.
GoldHaven has also engaged Dias Airborne Limited to complete a 1,741 line-kilometre high-resolution airborne magnetic survey across the 100%-owned Magno Project. The survey is expected to fly at 100 metre line spacing over priority corridors, including the Magno, Kuhn, and D Zones, and is designed to support 2026 drill targeting and 3D geological modelling.
This will be the first modern geophysical survey over the consolidated Magno land package. The resulting dataset will be integrated with historical drilling, surface sampling, geological mapping, and geochemical data to refine high-confidence drill targets. GoldHaven is also evaluating a potential follow-on ground-based 3D IP survey to enhance subsurface targeting.
Why Magno Matters for Investors & Shareholders
Magno has become GoldHaven’s flagship North American exploration asset. The project offers a rare combination of scale, infrastructure, high-grade surface results, critical-mineral exposure, and near-term drill catalysts. GoldHaven has verified high-grade silver-lead-zinc mineralization, confirmed widespread tungsten, identified critical-metal enrichment, expanded the land package, submitted a drill permit application, and launched modern geophysical targeting.
For investors, the opportunity is clear: Magno provides exposure to a large, district-scale polymetallic system at the point where modern exploration is beginning to convert surface results and historical data into drill-ready targets.
GoldHaven’s objective is to systematically test Magno’s highest-priority zones and advance the project toward discovery across a large, underexplored silver and critical minerals system in one of Canada’s most established mining jurisdictions.
CEO Rob Birmingham, Director Gerry Diakow and head geologist Michael Garagan during a field visit to the Magno project, August 2025
