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Lannister Mining, gold and silver exploration in west-central Montana

Basin Gulch, gold and silver in Montana

Lannister Mining is a mineral exploration company advancing the Basin Gulch Property, a near-surface gold-silver project in west-central Montana with more than 320 historical drill holes.

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Read the investor caseExplore the Basin Gulch Property

The short answer

What is Lannister Mining?

Lannister Mining is a gold exploration company focused on one asset: the Basin Gulch Property near Philipsburg, Montana. The property hosts near-surface, oxide-hosted gold-silver mineralization, has more than 320 historical drill holes, and covers 1,107 hectares of patented and unpatented claims. The company is working toward a Maiden Mineral Resource Estimate.

Lannister Mining, defined

Lannister Mining is a mineral exploration company. It does not operate a mine. Its work centres on the Basin Gulch Property in the historic Philipsburg Mining District of west-central Montana, a district that led the original US silver boom in the late 1800s.

Basin Gulch is primarily on patented land and hosted in oxides. The company reports mineralization that is open at depth, along strike and untested regionally, and says the property has not been mined out. Its stated goal is to confirm and expand historical drill intercepts and publish a Maiden Mineral Resource Estimate, then drill additional target areas on the two-thirds of the property still unexplored.

Basin Gulch by the numbers

Historical drill holes
More than 320
Land package
1,107 hectares
11 patented and 53 unpatented claims
Still unexplored
About two-thirds
of the property, per the company
Access
Year-round
From Philipsburg; about one hour from Butte

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

Map of Montana showing the location of the Basin Gulch Property near Philipsburg in the west-central part of the state
Basin Gulch location in west-central Montana. Map from Lannister Mining.

Our model

A gold exploration company with a US asset

A gold exploration company finds and defines deposits before anyone builds a mine. Lannister Mining fits that description exactly: it holds a consolidated claim package, inherits a large body of historical drilling, and is now turning that history into a modern, compliant resource.

What sets Basin Gulch apart is where it starts. Many explorers begin with grassroots ground and no drilling. Basin Gulch begins with more than 320 historical drill holes and highlight intersections such as 1.8 g/t gold over 162 meters from surface, as published by the company. The company also states that US-based companies with NI 43-101 compliant resources trade at a significant premium compared to their peers, and that is the value it aims to unlock.

New to the sector? Our guide to what a gold exploration company is and how to value one explains the stages, the numbers investors check and how exploration affects the environment.

Two-thirds of the property still unexplored.
Lannister Mining, Basin Gulch property overview

The plan

How does Lannister Mining plan to advance Basin Gulch?

The company plans to combine historical drilling with new work programs to produce a Maiden Mineral Resource Estimate, then push into new target areas. In sequence:

  1. Step 1. Compile and validate the more than 320 historical drill holes and trench results.
  2. Step 2. Run confirmation drilling of historical drill intercepts.
  3. Step 3. Run expansion drilling where mineralization is open at depth, along strike and in multiple directions.
  4. Step 4. Prepare a Maiden Mineral Resource Estimate combining historical drilling and new work programs.
  5. Step 5. Drill additional mineralized target areas across the two-thirds of the property still unexplored.

The detail behind each step lives in the Basin Gulch technical summary.

Context

How Lannister Mining compares with other gold exploration companies

Gold exploration companies and gold producers report very different numbers. Explorers like Lannister Mining report drill holes, land and planned resources. Producers report ounces and revenue. The table below, published by Lannister Mining, places each company by stage using facts from its own public pages.

Gold companies by stage, compiled and published by Lannister Mining from each company's own public pages. Order runs from earliest stage to latest, not by quality.
CompanyStageMost recent published factSource
Lannister MiningExplorationMore than 320 historical drill holes; Maiden Mineral Resource Estimate planned.As of November 2026lannistermining.com
Goldgroup MiningProducerDescribes itself as fast-tracking toward intermediate-producer scale.As published on its home pagegoldgroupmining.com
West Red Lake GoldProducerQ2 2026 gold production of 8,576 ounces, up 51% from 5,667 ounces in Q1; revenue of $49.0 million.Q2 2026westredlakegold.com
IAMGOLDProducerQ2 2026 production of 188,100 ounces of gold and $507.3 million of adjusted EBITDA.Q2 2026newsfilecorp.com
Coeur MiningProducerRecord Q2 2026 revenue of $1.1 billion and operating cash flow of $513 million; GAAP net income of $122 million.Q2 2026coeur.com

See the full comparison, the criteria behind it, and sourced gold mining industry statistics on gold exploration companies compared.

Information for investors and exploration partners

For exploration partners

Basin Gulch offers year-round road access from Philipsburg, multiple high priority targets near the historic resource, and roughly two-thirds of the property still unexplored. Confirmation, expansion and regional drilling are all on the work plan.

See what partners should know about Basin Gulch.

People

Who leads Lannister Mining?

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), which advanced a 5 million ounce gold-silver project in British Columbia. CFO Kelvin Lee has over 15 years of financial management experience with publicly traded companies. K92 Mining CEO John Lewins serves as an advisor.

Meet the full management team, board and advisors.

FAQ

Common questions

What is Lannister Mining?

Lannister Mining is a mineral exploration company focused on the Basin Gulch Property, a gold and silver project in west-central Montana. The property has near-surface gold-silver mineralization, more than 320 historical drill holes and a land package of 11 patented and 53 unpatented claims covering 1,107 hectares.

What is a gold exploration company?

A gold exploration company searches for and tests gold deposits before any mine is built. It acquires mineral claims, maps and samples the ground, drills targets and works toward a compliant mineral resource estimate. Lannister Mining is a gold exploration company working on the Basin Gulch Property in Montana.

Where is the Basin Gulch Property?

The Basin Gulch Property is in west-central Montana, in the historic Philipsburg Mining District. It has year-round access from Philipsburg on paved and well-maintained gravel roads and is about one hour from Butte, Montana.

How many holes have been drilled at Basin Gulch?

More than 320 historical drill holes have been completed at Basin Gulch, according to Lannister Mining. The company 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.

Why do investors look at Lannister Mining?

Lannister Mining highlights significant historical work of more than 320 drill holes, a consolidated 1,107 hectare land package, a location in the historic Philipsburg Mining District and an experienced team. The company describes Basin Gulch as an asset that has not been mined out and sits in a premium jurisdiction.

How do you value a gold exploration company?

Most investors value a gold exploration company on the quality of its project rather than earnings, since explorers usually have no revenue. Common checks include grade and width of drill results, how much ground is untested, jurisdiction, land tenure, the path to a compliant resource, and the track record of management.

Who are the top gold exploration companies?

There is no single official ranking of top gold exploration companies; lists change with market value, results and stage. This site compares companies by stage using sourced public facts on the Companies Compared page. It is published by Lannister Mining, so it presents Lannister alongside others rather than as an independent ranking.

Read all questions in the Lannister Mining FAQ

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