Lake George
Tungmony Project
100%-owned district-scale antimonyâtungsten land package surrounding North America's largest past-producing antimony mine. A new 2026 high-resolution magnetic and VLF-EM survey covered 1,173 line-kilometres and identified mine-style exploration signatures across Hertz's claims.
New 2026 high-resolution airborne magnetic anomalies â click to enlarge
District-Scale Critical Mineral Opportunity
2026 Mine Acquisition Opportunity
The New Brunswick government is expected to tender the Historic Lake George Antimony Mine in 2026. Hertz Energy is positioning itself as a prime contender with strategic claims surrounding the mine and strong institutional backing for the acquisition bid.
HZ Interview: David Lentz on Lake George Antimony Project Potential
David Lentz, Research Chair in Economic Geology at the University of New Brunswick, discusses Lake George's historical production, resource potential, tailings opportunity, metallurgy, and broader antimony-tungsten exploration upside.
Claims Map â Lake George Tungmony Project
Developing a comprehensive and regionally dominant claims package with highest potential antimony and tungsten showings
Strategic Antimony-Tungsten Claims in Tier-1 Location
- 93 secured mineral claims spanning ~21 km² surrounding the former Lake George Antimony Mine, Canada's largest past producing antimony mineâwith no underlying royalties or agreements
- Includes ~10 km of strike length across favourable geological formationsâincluding sediments near intrusive contactsâenhancing the likelihood of discovering mineralization
- Beyond antimony (Sb), the property holds potential for gold, molybdenum and tungsten
- Demonstrates proven antimony potential and existing infrastructure surrounding a historic, prolific mine 'Lake George Mine', North America's largest antimony producer, operating intermittently from 1876 to 1996
- Lake George Mine includes Tungsten (W) and Molybdenum (Mo) as recognized by-products
Well Located Land Package
- 100% owned exploration stage Sb-Au project located ~30 km southwest of Fredericton (York County, NB) with existing historic mine infrastructure
- Project lies along strike (to the southwest and northeast) and downdip (to the north) of the Lake George historic mine, covering ~10 km of strike length along the favourable sediments near the intrusive contact
- Property encompasses 93 mineral claims over 2,104 hectares, surrounding the historic, high-grade, past-producing Lake George Antimony Mine
- Claim staking in 2024 based on geology; focused on the contact of the granite to the north with the sediments to the south, along with the presence of NW-SE trending structures, potentially responsible for the E-W trending Quartz-Stibnite veins
- Excellent road access, proximity to hydroelectric power, and local experienced workforce available
Strategic location near Fredericton, New Brunswick
North America's Largest Historical Antimony Producer
Historical Significance
- The Lake George Mine (owned by the Province) was North America's largest antimony producer from 1876 to 1996, yielding +34,000t of concentrate with grades up to 66% Sb
- Between 1985â90: up to 1 Mt at 4% Sb (Caron, 1996)
- As of 1980, Lake George had produced ~1 million tons grading 3â3.5% Sb
- Hibbard vein alone has yielded +50 million pounds of Sb
- Apocan Inc. was the last operator (1996-1997), closed due to weak Sb pricesâmine operated intermittently from 1876 to 1997
- Deposit type: Stibnite-bearing quartz veins hosted in Silurian greywacke and slate
Current Resources (MRB 2014)
| Category | Tonnes | Grade |
|---|---|---|
| Indicated | 134,731 t | 3.48% Sb |
| Inferred | 661,747 t | 2.58% Sb |
Mine Site & Infrastructure
- Principal veins reported: Hibbard, Prout, Brunswick, Adams and Lawrence; uranium-bearing halo locally reported
- 4 main Sb veins with shallow dip of ~20° to the north, vary from 1â2 metres in thickness
- Historical infrastructure: 3 shafts; underground development on ~10 levels; deepest workings ~400 metres below surface
- Surface features: Remaining buildings and a tailings pond
- Lake George mine site including mill were decommissioned in 1997 by Apocan with some buildings recently demolished for safety by NB government
- Under Care and Maintenance within active provincial mining lease
- Ownership/Lease: Currently owned by the Province of New Brunswick; companies including Hertz Energy have discussed potential tenderingâdecision expected by NB government by end of 2025
Hertz aims to acquire the Lake George Antimony Mine site and mill to restart operations
Region of Tungsten (Scheelite) Mineralization
Tungsten at Lake George
- 2 tungsten showings (yellow triangles) in the area
- Tungsten is primarily in the form of scheelite in a stockwork of quartz-veinlets
- The Lake George site is better known historically for its Antimony mine but includes Tungsten (W) and Molybdenum (Mo) as recognized by-products
- Tungsten occurs both as quartz-vein/stockwork scheelite and in hydrothermal mineralization spatially associated with the Lake George granodiorite/pluton
- Part of a broader New Brunswick W-Mo-Sb metallogenic belt that includes Sisson Brook and Mount Pleasant
- Planned exploration programs on Lake George property (soils, prospecting, geophysics) would focus on Sb-Au-W-Mo as they are often interrelated
Tungsten showings (yellow triangles) near Lake George Mine
Published Drill Results
- Goldstar Minerals (2016â2020): Company drill summaries report tungsten intercepts including 0.10% WOâ over 21 metres, continuous tungsten intervals of at least 50 metres
- Historical hole (drilled in 2016): 245 metres at 0.10% WOâ, including 84 metres at 0.14% WOâ
- NB Mineral Commodity Profile: Historical assay 0.086% WOâ and 0.033% Mo; scheelite occurs as a stockwork in calcareous Silurian rocks up to ~5 metres from the apex of the pluton
District Context & Nearby Projects
- Lake George falls within a metallogenic belt that also hosts Sisson (Sisson Brook / Sisson North) and Mount Pleasantâmajor regional tungsten Âą Mo deposits and targets
- Sisson Brook: Sheeted vein system containing 574 million tonnes grading 0.050%â0.067% WOâ and 0.020%â0.021% Mo (279,762 tonnes W)
- Sisson Brook Tungsten Project (Northcliff Resources) was added to Canada's Nation Building Projects list by the federal governmentâMajor Projects Office provides financial and regulatory assistance
- Mount Pleasant: Significant example of vein-style tungsten mineralization hosting scheelite and wolframite alongside substantial tin and molybdenum resources
- 2 out of Canada's 9 tungsten deposits with mineral resource estimates are located in New Brunswick
- Several junior companies have been active in the region recently (staking, claim acquisitions), reflecting renewed interest in tungsten as a critical metal
Lake George properties geology and structural context
Favourable Geological Setting
Geological Setting & Mineralization
- Property lies along favourable geological structures, including Ordovician sedimentary and volcanic rocks adjacent to the Lake George granodiorite, similar to the mine's host rocks
- Bedrock geology includes clastic sediments of the Burtts Corner Formation in contact with felsic intrusives, favorable for stibnite (Sb) mineralization
- Situated within the Silurian-aged Kingsclear Group, characterized by deformed, metamorphosed slates, phyllites, schists, and interbedded metavolcanics
- Mesothermal, vein-type antimony deposit (stibnite-rich)âa classic and well-understood style of mineralization
- Quartz-carbonate veins hosted in fractured and sheared sedimentary rocks, enriched in stibnite with minor pyrite, arsenopyrite and gold
- Hydrothermal Alteration Indicators: Host rocks show silicification, carbonate veining, and sericitization, confirming strong hydrothermal fluid activityâkey vector for high-grade mineralization
Model of the geological setting and mineralization at Lake George.
Structurally Controlled Vein System
- Mineralization is structurally controlled by NWâSE and EâW fault systems, directly linked to known high-grade stibnite-quartz veins
- Vein System: Deposit comprises en-echelon, gold-bearing polymetallic and antimony veins, hosted in Ordovician sedimentary and volcanic rocks adjacent to granodiorite
- 4 main antimony veins previously developed (1â2 metre width, shallow dip to the north)
- Extent of Vein Network: Quartz vein systems extend >1 km deep and >2 km along strike, controlled by NE-trending fault zones
- Formed during the Devonian via granitic intrusions driving hydrothermal fluids through fractures, precipitating stibniteâclassic formation for high-quality antimony veins
- Continuity and vein structures offer strong targets for modern exploration and resource expansion
| Vein | Type | Notes |
|---|---|---|
| Hibbard | Primary | +50M lbs Sb produced |
| Adams | Secondary | Significant historical resource zone |
| Lawrence | Secondary | Exploration target |
Map showing geological potential and vein systems.
Lake George Offers a Rare Combination
High-grade, structurally controlled antimony mineralization with well-understood mesothermal vein systems, clear exploration vectors, all within a historically productive and geologically favourable setting. District-scale antimony position, strong vein systems, surrounded by infrastructure and access.
High-Resolution Heliborne Magnetic & VLF-EM Survey
Survey Overview
- Very high-resolution heliborne survey flown over Lake George and Hertz's claims with 50 m line spacing and the sensor draped just 15â20 m above the topography
- Total survey coverage of 1,173 line-kilometres
- Flown by Novatem Airborne Geophysicsâqualified geophysicist with over 40 years of experience, having flown surveys for provincial and federal governments
- The G2 light helicopter flies 4 times lower than an Astar helicopter, providing much higher resolution data
Survey area over Hertz's claims, flown by Novatem's low-level G2 helicopter
Why It Matters
- Claims are adjacent to and surround North America's largest antimony mine site (Lake George Antimony Mine)
- Claim staking focused on the contact of the granite to the north with sediments to the south, along with NWâSE trending structures potentially responsible for the EâW trending quartz-carbonate stibnite veins
- Magnetics, VLF-EM and topography together provide direct vectors toward the same signature as the historic mine
Hertz claims (2024 & 2026) surrounding the Lake George Sb Mine, staked along the graniteâsediment contact
Survey Results
The Lake George Mine Signature â Repeated on Hertz Ground
The surface projection of the Lake George Mine (black outline) shows distinct magnetic, VLF-EM and topographic signaturesâand the survey identifies similar features on Hertz's property.
Survey Takeaway
The 2026 heliborne survey confirms that the magnetic, conductive and topographic signature of the historic Lake George Mine repeats on Hertz's surrounding claimsâproviding clear, data-driven drill targets along ~10 km of favourable strike.
Proposed Till or Soil Survey Options
Exploration Programs
- Hertz is preparing to initiate geological mapping and soil geochemistry
- Discussions underway with the New Brunswick government regarding the potential tender of the mining lease to restart operation with high antimony demand and prices
- Planned exploration programs on Lake George property (soils, prospecting, geophysics) would focus on Sb-Au-W-Mo as they are often interrelated
- ~10 km of favourable strike length across +2,100 hectares of exploration potential
- Published studies and exploration programs report W (scheelite) intercepts and showings identify stockwork scheeliteâMo zones as an important part of the polymetallic system
Infrastructure Advantages
- Excellent road access, proximity to hydroelectric power, and availability of local personnel make the project well-supported for exploration
- Historic Infrastructure at Adjacent Lake George Mine: Mine infrastructure includes 3 shafts, 10 underground levels, surface buildings and a tailings pond
- Deepest workings reaching about 400 metres below surface
- Mining-friendly jurisdiction with established permitting processes
- Regional context: Lake George is cited as one of the top antimony occurrences in NB and a past primary Sb producer in North America
Geological Mapping
Structural and lithological mapping to refine vein orientations and intrusive contacts across the property.
Soil Geochemistry
Soil/till surveys targeting SbâAuâWâMo anomalies across ~10 km strike length along favourable sediments.
Geophysics
IP and magnetics to image structures associated with stibnite veins and scheelite zones.
Mine Tender Bid
Define priority targets and prepare technical package to support Hertz's bid for the Lake George Mine tender.
Critical Mineral Designation
Antimony Applications
- Flame retardants (largest use)
- Lead-acid battery production
- Ammunition and defense
- Alloys and semiconductors
- Solar panel manufacturing
Tungsten Applications
- High-strength alloys for defense
- Cutting tools and wear-resistant materials
- Electronics and semiconductors
- Aerospace components
- Medical devices and radiation shielding
Supply Security Imperative
With China controlling ~80% of global antimony supply and significant tungsten production, North American projects like Lake George are strategically critical for supply chain security and defense readiness. Both Sb and W are designated critical minerals by Canada and the US.
Lake George Investment Highlights
2026 Mine Tender
Unique opportunity to acquire North America's largest past-producing antimony mine through provincial tender.
Proven Resources
Historical resources of 134,731 t @ 3.48% Sb (Indicated) and 661,747 t @ 2.58% Sb (Inferred).
District-Scale Upside
~10 km prospective strike with multiple untested targets. W and Au credits provide additional value.
Critical Minerals
Sb and W designated critical minerals essential for defense and technology applications.