Basin Gulch Property · West-central Montana

A gold exploration company advancing Basin Gulch in Montana

Last updated: November 2026

Lannister Mining is a gold exploration company exploring near-surface gold and silver oxide mineralization at the Basin Gulch Property in west-central Montana. The property has more than 320 historical drill holes, a 1,107-hectare land package and multiple targets, and Lannister Mining plans further exploration and resource development toward a maiden mineral resource estimate.

Contact investor relations Explore the Basin Gulch Property

Landscape view of the Basin Gulch Property in west-central Montana — Basin Gulch, near Philipsburg, Montana. Year-round access on paved and well-maintained gravel roads, about one hour from Butte.

What is Lannister Mining, and what is it exploring?

Lannister Mining is a Montana-focused gold and silver explorer whose single property, Basin Gulch, hosts near-surface oxide mineralization that is open at depth, along strike and untested regionally. The company is combining more than 320 historical drill holes with new work programs to build a maiden mineral resource estimate, while testing additional targets across a property that is roughly two-thirds unexplored.

For investors researching gold and silver explorers, the core idea is simple: a large body of historical drilling on mostly patented land, in a US mining district with a long record, that has not been mined out. For exploration partners, it is a consolidated 1,107-hectare package with road access all year.

Definition

Lannister Mining, defined

Lannister Mining is a mineral exploration company focused on the Basin Gulch Property in west-central Montana. It explores near-surface gold and silver oxide mineralization rather than operating a mine.

Its management and board include people who were co-founders or senior executives at K92 Mining, Fosterville South Exploration, Arena Minerals and Thesis Gold. The company plans further exploration and resource development, with a maiden mineral resource estimate as the next major milestone.

Numbers

Basin Gulch by the numbers

320+ historical drill holes
1,107 hectares in the land package
11 + 53 patented and unpatented claims
2/3 of the property still unexplored
1 hour from Butte, Montana

Procedure

The path to a maiden resource

Compile and use more than 320 historical drill holes.
Confirmation drilling of historical drill intercepts.
Expansion drilling, since mineralization is open at depth and along strike.
Prepare a future maiden mineral resource estimate.
Drill additional mineralized target areas across the property.

Two-thirds of the property still unexplored.

Lannister Mining, Basin Gulch property overview

Investment highlights

Significant historical work

Basin Gulch has seen more than 320 historical drill holes. That record is the foundation for a future maiden mineral resource estimate, alongside new work programs.

Near-surface, high-grade gold and silver

The company describes high-grade gold-silver mineralization near surface, hosted in oxides, with significant implied flexibility for future mine design optimization.

Large, consolidated land package

11 patented claims and 53 unpatented claims, totalling 1,107 hectares, with multiple high-priority targets near the historic resource.

Established mining jurisdiction

The property sits in the heart of the historic Philipsburg Mining District in Montana, which led the original US silver boom in the late 1800s.

The company also notes that US-based companies with 43-101 compliant resources trade at a significant premium compared to their peers. Read more on the Investors page.

Lannister Mining as a mineral exploration company

A mineral exploration company finds and measures deposits before anyone builds a mine. Lannister Mining sits at that early stage: exploring, confirming historical results and working toward a first resource estimate. That carries more risk than owning a producer, and more exposure to discovery. Our explainer covers what a mineral exploration company does and the five stages of mining, and our guide explains how to value a gold exploration company.

How does Lannister Mining compare with other gold companies?

Lannister Mining is earlier in the development path than the producers it is often researched alongside. This table uses only public facts; the full comparison, published by Lannister Mining, is in our top gold exploration companies guide.

Lannister Mining and two peers by development stage. Published by Lannister Mining.
Company	Stage	Key public figure
West Red Lake Gold	Producer	8,576 oz gold produced in Q2 2026
Thesis Gold	Resource defined	5 million ounce gold-silver project, British Columbia
Lannister Mining	Exploration	320+ historical drill holes, 1,107 ha, maiden resource planned

A seasoned team

CEO Jim Greig brings more than 25 years of experience advancing and developing projects to production scenarios, and was a founder, President and Director at Thesis Gold. CFO Kelvin Lee has over 15 years of financial management experience with publicly traded companies. The board and advisors include a co-founder and the CEO of K92 Mining. Meet the Lannister Mining team.

Common questions

What is Lannister Mining?: Lannister Mining is a mineral exploration company focused on the Basin Gulch Property in west-central Montana, where it explores near-surface gold and silver oxide mineralization. The property has more than 320 historical drill holes and a 1,107-hectare land package, and the company plans further exploration and resource development toward a maiden mineral resource estimate.
Is Lannister Mining a gold exploration company or a mining company?: Lannister Mining is a gold exploration company, not a producing miner. Its work centres on exploring and defining gold and silver oxide mineralization at Basin Gulch in Montana. The company plans a future maiden mineral resource estimate using historical drilling and new work programs, an exploration-stage milestone that comes before any mine development decision.
How big is the Basin Gulch land package?: The Basin Gulch land package covers 1,107 hectares. It is made up of 11 patented claims and 53 unpatented claims, with a core of patented mining claims surrounded by unpatented mining claims. The company describes it as a large, consolidated package with multiple high-priority targets near the historic resource area.
What are the best historical drill results at Basin Gulch?: Highlight historical intersections reported by the company include 1.8 g/t Au over 162 meters from surface, 0.66 g/t Au over 326 meters from surface, 3.2 g/t Au over 72 meters from surface, 156 g/t Au over 3 meters, and 25 g/t Au over 14 meters. These are historical results, not a current mineral resource estimate.
Does Basin Gulch have a mineral resource estimate?: Not yet. Lannister Mining plans a future maiden mineral resource estimate that will draw on historical drilling and new work programs. The company points to a clear market premium for SK1300 and NI 43-101 compliant gold and silver ounces in the USA, which a compliant estimate for Basin Gulch would be designed to address.
How do I invest in Lannister Mining?: Start by reading the company’s USA Investor Presentation from June 2026, then contact investor relations. Ken Cotiamco handles enquiries at 604-687-7130 and IR@lannistermining.com, and the company can confirm current listing, share structure and financing details. Nothing on this site is investment advice, so consider speaking with a licensed advisor.
What are the top gold exploration companies?: There is no single official list, and rankings depend on the criteria used. Our guide, published by Lannister Mining, compares five companies by development stage using public facts: Coeur Mining, K92 Mining and West Red Lake Gold as producers, Thesis Gold at the resource stage, and Lannister Mining at the exploration stage.

See all 46 questions in the FAQ

Talk to Lannister Mining investor relations

Questions about Basin Gulch, the investor presentation or partnering? Reach Ken Cotiamco at 604-687-7130 or IR@lannistermining.com.

Contact investor relations Email IR@lannistermining.com