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Basin Gulch Property, Montana

Lannister Mining is exploring Basin Gulch in Montana

Last updated: November 2026

Lannister Mining is a gold exploration company exploring the Basin Gulch Property for gold and silver in west-central Montana. The property spans 11 patented and 53 unpatented claims over 1,107 hectares, has more than 320 historical drill holes, and is open at depth and along strike, with two-thirds of the ground still unexplored.

Explore the Basin Gulch PropertyRead the June 2026 investor presentation (PDF)

What does a gold exploration company like Lannister Mining do?

A gold exploration company finds and tests gold deposits before anyone decides whether to build a mine. Lannister Mining does that work at one property, Basin Gulch, where historical drilling reported long near-surface gold intercepts in oxide-hosted rock.

The company plans expansion and confirmation drilling of historical intercepts, then a Maiden Mineral Resource Estimate. Future drilling will also concentrate on additional mineralized target areas within the property. For investors and exploration partners, that means an asset with significant historical work that has not been mined out, in a premium US jurisdiction.

Historical drill logHighlight historical intercepts at Basin Gulch
  1. 0.66 g/t Auover 326 m (1,069.6 ft), from surface
  2. 1.8 g/t Auover 162 m (531.5 ft), from surface
  3. 3.2 g/t Auover 72 m (236.2 ft), from surface
  4. 25 g/t Auover 14 m (45.9 ft)
  5. 156 g/t Auover 3 m (9.8 ft)

Historical results as reported by Lannister Mining. Lengths are drilled lengths. These figures are not a current mineral resource.

Definition

What is the Basin Gulch Property?

The Basin Gulch Property is Lannister Mining's gold and silver exploration project in the historic Philipsburg Mining District of west-central Montana. It covers 1,107 hectares: a core of 11 patented mining claims surrounded by 53 unpatented claims. Basin Gulch is primarily on patented land, its mineralization is hosted in oxides, and more than 320 historical drill holes have been completed there. Lannister Mining reports the mineralization is open at depth, along strike and untested regionally, and that the property has potential to host a significant Maiden Mineral Resource Estimate after expansion and confirmation drilling. It has year-round access from Philipsburg and is about one hour from Butte.

Numbers

Basin Gulch by the numbers

  • 11 patented and 53 unpatented mining claims
  • 1,107 hectares in the consolidated land package
  • More than 320 historical drill holes
  • Two-thirds of the property still unexplored
  • 1.8 g/t Au over 162 meters from surface, a highlight historical intercept
  • About one hour from Butte, Montana, with year-round access from Philipsburg

Figures as reported by Lannister Mining, as of November 2026.

Two-thirds of the property still unexplored.
Lannister Mining on the Basin Gulch Property

Investment highlights for a US gold exploration company

Who is behind Lannister Mining?

Lannister Mining is led by CEO and director Jim Greig, who brings more than 25 years of experience advancing projects toward production and was a founder of Thesis Gold (formerly Benchmark Metals). Many of the team's co-founders and senior executives held the same roles at K92 Mining, Fosterville South Exploration, Arena Minerals and Thesis Gold.

Meet the Lannister Mining management team and board

How Lannister Mining plans to advance Basin Gulch

  1. Compile and review the more than 320 historical drill holes and trench results at Basin Gulch.
  2. Drill to confirm historical intercepts so they can be used under current reporting standards.
  3. Drill to expand mineralization that remains open at depth and along strike.
  4. Test additional mineralized target areas across the two-thirds of the property still unexplored.
  5. Use historical drilling and new work programs in a Maiden Mineral Resource Estimate.

Read about the stages of mineral exploration at Basin Gulch

Where does Lannister Mining sit among mineral exploration companies?

Lannister Mining is a single-property explorer, which sets it apart from mineral exploration companies that hold portfolios or already produce metal. The table below compares three companies on the same criteria, using facts each company publishes about itself.

Mineral exploration companies compared on the same criteria, published by Lannister Mining
CompanyJurisdictionStagePublished exploration factSource
Lannister MiningMontana, USAExploration, working toward a Maiden Mineral Resource EstimateMore than 320 historical drill holes; two-thirds of the property unexploredlannistermining.com
Goldgroup MiningMexico and the United StatesProducerDescribes itself as fast-tracking toward intermediate-producer scalegoldgroupmining.com
Hecla (Nevada exploration projects)Nevada, USAExploration portfolio inside a larger mining companyStates that 90% of one district remains unexplored with modern geophysics, drilling or detailed geological workhecla.com

See the full comparison of mineral exploration companies in the USA

Questions about this gold exploration company

Short answers to common questions. The full list lives on the Lannister Mining FAQ.

What is Lannister Mining?
Lannister Mining is a mineral exploration company exploring the Basin Gulch Property for gold and silver in west-central Montana. The property covers 11 patented and 53 unpatented claims totaling 1,107 hectares, with more than 320 historical drill holes. The company plans further exploration and resource development toward a Maiden Mineral Resource Estimate.
Is Lannister Mining a gold exploration company or a gold producer?
Lannister Mining is a gold exploration company, not a producer, and it does not operate a mine. Its work centers on confirming and expanding historical drill results at Basin Gulch so they can support a Maiden Mineral Resource Estimate, the step that comes before economic studies or any development decision.
How big is the Basin Gulch Property?
The Basin Gulch Property covers 1,107 hectares across 11 patented and 53 unpatented mining claims. A core of patented claims is surrounded by unpatented claims, and Lannister Mining reports multiple high priority targets near the historic resource area. Two-thirds of the property has not yet been explored.
What are the best historical drill results at Basin Gulch?
Highlight historical intercepts include 1.8 g/t Au over 162 meters from surface, 0.66 g/t Au over 326 meters from surface and 3.2 g/t Au over 72 meters from surface. Narrower high grade intervals include 156 g/t Au over 3 meters and 25 g/t Au over 14 meters. These are historical results, not a current resource.
Who is Lannister Mining for?
Lannister Mining is for investors who want exposure to a US gold and silver exploration asset in a historic mining district, and for exploration partners interested in an under-explored land package with a large historical drill database. Basin Gulch combines more than 320 historical holes with two-thirds of the property still unexplored.
How do you value a gold exploration company?
Investors value a gold exploration company on the quality and scale of its mineralization, its jurisdiction, its stage, its team and its funding. Before a resource exists, drill results, land position and comparable companies carry the most weight. Lannister Mining notes that US companies with 43-101 compliant resources trade at a significant premium to peers.
Does Lannister Mining have a mineral resource today?
No current compliant mineral resource is reported on this site. Lannister Mining plans to use historical drilling and new work programs at Basin Gulch for a future Maiden Mineral Resource Estimate, after expansion and confirmation drilling of historical intercepts.

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