The property

The Basin Gulch Gold-Silver Property

Last updated: November 2026 · Published by Lannister Mining

Basin Gulch is an oxide-hosted gold-silver property in west-central Montana, primarily on patented land, with more than 320 historical drill holes and two-thirds of its area unexplored.

Lannister Mining describes Basin Gulch as open at depth, along strike and untested regionally. The company says the property has potential to host a significant Maiden Mineral Resource Estimate after expansion and confirmation drilling of historical drill intercepts. It is the centerpiece of gold exploration in Montana for Lannister Mining.

What kind of gold deposit is Basin Gulch?

Basin Gulch hosts high-grade gold-silver mineralization in oxides, close to surface. Historical holes such as 1.8 g/t Au over 162 meters and 3.2 g/t Au over 72 meters started at surface. No mineral resource estimate has been published yet; Lannister Mining plans a maiden estimate.

Basin Gulch property facts

historical drill holes: 320+
claims: 11 patented, 53 unpatented: 64
land package: 1,107 ha
of the property unexplored: 2/3

Geology and mineralization

Mineralization

What Lannister Mining reports about the rocks

Gold and silver at Basin Gulch are hosted in oxides and begin near surface. Lannister Mining calls it a gold and silver oxide discovery and says the near-surface grade gives significant implied mine design optimization flexibility.

The mineralization is open in multiple directions and at depth, which means the historical drilling has not yet found its limits. Future drilling will concentrate on additional mineralized target areas within the property.

Upside

Exploration upside

With two-thirds of the Basin Gulch Property still unexplored, Lannister Mining sees substantial exploration upside. Multiple high-priority targets sit near the historic resource area, and the wider property has not been tested regionally.

Lannister Mining map of the Basin Gulch Property and its exploration areas — Basin Gulch Property map from Lannister Mining.

What is proven, and what still needs work

Basin Gulch Property status, as described by Lannister Mining
Item	Status	Why it matters
Historical drilling	More than 320 holes completed	A large data set to guide confirmation drilling
Mining history	Not mined out	The mineralization has not been depleted by past production
Land status	Primarily patented land	A privately held core with surrounding unpatented claims
Resource estimate	Not yet published	A Maiden Mineral Resource Estimate is planned
Regional ground	Untested	Two-thirds of the property is unexplored

Go deeper on Basin Gulch

The core of the property is a group of patented mining claims, surrounded by unpatented claims. See the claim package for details, the historical drilling page for every highlight intercept, and location and access for how crews reach the site.

Investors can start with the investor overview, and technical groups can read the exploration partner brief.

Lannister Mining map showing Basin Gulch drilling and target areas — Basin Gulch drilling and target areas, map from Lannister Mining.

Common questions

See all questions in the FAQ

What is the Basin Gulch Property?

Basin Gulch is a gold and silver exploration project in west-central Montana explored by Lannister Mining. It hosts near-surface gold-silver mineralization in oxides, sits mainly on patented land, and has seen more than 320 historical drill holes. The land package covers 11 patented and 53 unpatented claims totaling 1,107 hectares.

Read this answer in the full FAQ

Is Basin Gulch a gold mine?

No. Basin Gulch is an exploration project, not an operating mine. Lannister Mining describes the property as one that has seen significant historical work but has not been mined out. Historical drilling and new work programs are intended to feed a future Maiden Mineral Resource Estimate.

Read this answer in the full FAQ

What metals are found at Basin Gulch?

Gold and silver. Historical drill highlights are reported in grams per tonne of gold, and trench highlights report both gold and silver, such as 5 g/t Au and 54 g/t Ag over 34 meters. Lannister Mining describes Basin Gulch as a gold and silver oxide discovery.

Read this answer in the full FAQ

What is an oxide-hosted gold deposit?

An oxide-hosted deposit is one where gold sits in rock that has been weathered and oxidized near the surface. Basin Gulch mineralization is described as hosted in oxides. Across the industry, oxide material is generally easier to process than unoxidized sulfide rock, though metallurgy must be tested for each project.

Read this answer in the full FAQ

How much of Basin Gulch is still unexplored?

About two-thirds of the Basin Gulch Property is still unexplored, according to Lannister Mining. Mineralization is described as open at depth, along strike and untested regionally, and future drilling will concentrate on additional mineralized target areas within the property.

Read this answer in the full FAQ

Does Basin Gulch have a mineral resource estimate?

Not yet. Lannister Mining plans a Maiden Mineral Resource Estimate that will use historical drilling and new work programs. The company says the property has potential to host a significant maiden estimate after expansion and confirmation drilling of historical drill intercepts. Historical results are not a current mineral resource.

Read this answer in the full FAQ