Basin Gulch Property, west-central Montana

Advancing gold and silver at Basin Gulch, Montana

Last updated: November 2026. Published by Lannister Mining.

What is Lannister Mining?

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

For exploration partners Contact Lannister Mining

Hillsides and open ground at the Basin Gulch Property in west-central Montana — The Basin Gulch Property, reached year-round from Philipsburg, Montana, about one hour from Butte.

What is a mineral exploration company?

A mineral exploration company finds and tests mineral deposits before any mine is built, using mapping, sampling, trenching and drilling to show whether a deposit could support a resource. Lannister Mining is a mineral exploration company of this kind: it does not operate a mine today. Its work at Basin Gulch is aimed at confirming historical gold and silver results, drilling new targets, and building the data a first, or maiden, mineral resource estimate requires.

Search for "mineral exploration company limited" or a mineral exploration company in another country and you will find many unrelated firms. Lannister Mining is focused on one asset, in Montana.

Basin Gulch by the numbers

historical drill holes completed on the property: 320+
total land package, consolidated: 1,107 ha
patented claims plus unpatented claims: 11 + 53
of the property still unexplored: Two-thirds

Figures as reported by Lannister Mining, as of November 2026. See the full Basin Gulch Property profile.

The gold and silver mineralization at Basin Gulch is open in multiple directions and at depth.

Lannister Mining, on the Basin Gulch Property

A gold exploration company in the Philipsburg Mining District

As a gold exploration company, Lannister Mining focuses on near-surface gold and silver oxide mineralization that the company describes as high grade and hosted primarily on patented land. Near-surface oxides matter because they imply significant flexibility in how a future mine could be designed.

Historical drilling returned intersections such as 1.8 g/t gold over 162 meters from surface and 0.66 g/t gold over 326 meters from surface. These are historical results, and the company plans expansion and confirmation drilling before they support a modern resource.

Read our guide on how to value a gold exploration company, or go straight to the historical drilling results at Basin Gulch.

Highlight historical drill intersectionsAs reported by Lannister Mining. Historical results that require confirmation drilling.

1.8 g/t Au
over 162 m (531.5 ft), from surface
0.66 g/t Au
over 326 m (1,069.6 ft), from surface
3.2 g/t Au
over 72 m (236.2 ft), from surface
156 g/t Au
over 3 m (9.8 ft)
25 g/t Au
over 14 m (45.9 ft)

Bar length shows interval length in metres, not grade.

Why Basin Gulch? Four investment highlights

Significant historical work

More than 320 drill holes give Basin Gulch a large historical dataset to target from, rather than a blank map.

Potential for premium evaluation

Lannister Mining states that US-based companies with NI 43-101 compliant resources trade at a significant premium compared with their peers.

Large, consolidated land package

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

Safe jurisdiction

Located in the heart of the historic Philipsburg Mining District, which led the original US silver boom in the late 1800s.

How does Basin Gulch move toward a maiden resource?

Lannister Mining plans to use historical drilling and new work programs in a future Maiden Mineral Resource Estimate. The sequence below reflects the steps the company has described; timing depends on financing, permitting and results.

Exploration partners can see where they fit on the exploration partners page.

Compile and review the more than 320 historical drill holes at Basin Gulch.
Run confirmation drilling to verify historical intercepts with current methods.
Drill expansion holes where mineralization is open along strike and at depth.
Test additional mineralized target areas across the unexplored two-thirds of the property.
Combine historical and new data into a Maiden Mineral Resource Estimate.

Who is behind Lannister Mining?

Lannister Mining is driven by a team with many of the same co-founders or senior executives as K92 Mining, Fosterville South Exploration, Arena Minerals and Thesis Gold. CEO and Director Jim Greig brings more than 25 years of experience advancing projects toward production, and was a founder, President and Director at Thesis Gold (formerly Benchmark Metals), advancing a 5 million ounce gold-silver project in British Columbia.

Meet the management team, board and advisors.

Common questions

Read all questions about Lannister Mining

What is Lannister Mining?: Lannister Mining is a mineral exploration company focused on the Basin Gulch Property in west-central Montana. The company is exploring near-surface gold and silver oxide mineralization on a 1,107-hectare land package with more than 320 historical drill holes and multiple targets, and it plans further exploration and resource development.
Is Lannister Mining a gold exploration company?: Yes. Lannister Mining is a gold exploration company, and silver is part of the same story. The Basin Gulch Property hosts near-surface gold and silver oxide mineralization, and the historical drill and trench results the company highlights report gold grades, with silver grades reported in the trench results.
How many drill holes have been completed at Basin Gulch?: More than 320 historical drill holes have been completed at Basin Gulch. Lannister Mining plans to use this historical drilling, together with new work programs, in a future Maiden Mineral Resource Estimate after expansion and confirmation drilling of historical intercepts.
Does Basin Gulch have a current mineral resource estimate?: Not yet. Lannister Mining is working toward a Maiden Mineral Resource Estimate, which by definition would be the first for the project under current reporting rules. Historical drilling and new work programs are intended to support that estimate after expansion and confirmation drilling of historical intercepts.
Why would an exploration partner look at Basin Gulch?: Basin Gulch combines a large historical dataset, more than 320 drill holes, with a consolidated 1,107-hectare land package where about two-thirds remains unexplored. It has year-round road access from Philipsburg and sits about an hour from Butte, which supports practical field programs.
How can I invest in Lannister Mining?: Start by reading the June 2026 USA investor presentation and contacting investor relations. Ken Cotiamco can be reached at 604-687-7130 or IR@lannistermining.com. This website does not offer securities, and nothing here is investment advice; speak with a licensed advisor before making any investment decision.

Looking at gold and silver projects in Montana?

Exploration partners and investors can reach Lannister Mining through the company contact page, by phone at 604-687-7130 or by email at IR@lannistermining.com.

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