The property
The Basin Gulch gold-silver property
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Basin Gulch is a gold-silver exploration property in west-central Montana, explored by Lannister Mining, with near-surface oxide-hosted mineralization and more than 320 historical drill holes.
Lannister Mining describes Basin Gulch as primarily on patented land, hosted in oxides and open at depth, along strike and regionally. The consolidated package of 11 patented and 53 unpatented claims covers 1,107 hectares, two-thirds of it still unexplored, and the company plans confirmation and expansion drilling toward a maiden mineral resource estimate.
What makes the Basin Gulch property worth a closer look?
Three things: data, land and room to grow. More than 320 historical drill holes give Lannister Mining a dataset most early-stage explorers do not have. The patented core means much of the property is private land. And with two-thirds of the ground still unexplored, the company sees significant upside beyond the historical drilling.
Several of the best historical intercepts begin at surface, which matters because shallow mineralization is generally easier to reach. The company states the property has potential to host a significant maiden mineral resource estimate after expansion and confirmation drilling of historical drill intercepts.
Definition
What is the Basin Gulch property?
Basin Gulch is a gold-silver exploration property in the historic Philipsburg Mining District of west-central Montana, held and explored by Lannister Mining. It is underlain by a core of patented mining claims surrounded by unpatented claims, and its mineralization is hosted in oxides close to surface.
The property has year-round access from Philipsburg on paved and well-maintained gravel roads and sits about one hour from Butte. Historical drill programs shown on the company property map date from 1987, a 1989 program by Chevron, and annual programs from 1993 through 1997. There is no current mineral resource estimate yet; that is the next major milestone the company is working toward.
By the numbers
Basin Gulch land and data
- historical drill holes
- 320+
- claims in total: 11 patented and 53 unpatented
- 64
- total land package
- 1,107 ha
- of the property unexplored, per Lannister Mining
- 2/3
All figures as published by Lannister Mining on its property and home pages, as of November 2026.
Historical drill and trench highlights
These are historical results reported by Lannister Mining. They have not yet been confirmed by new drilling, which is one of the company's stated next steps. Grades are in grams per tonne (g/t).
| Gold grade | Length (m) | Length (ft) | From surface |
|---|---|---|---|
| 1.8 g/t Au | 162 | 531.5 | Yes |
| 0.66 g/t Au | 326 | 1,069.6 | Yes |
| 3.2 g/t Au | 72 | 236.2 | Yes |
| 156 g/t Au | 3 | 9.8 | Not stated |
| 25 g/t Au | 14 | 45.9 | Not stated |
| Gold | Silver | Length (m) | Length (ft) |
|---|---|---|---|
| 62 g/t | 32 g/t | 159 | 521.7 |
| 4 g/t | 23 g/t | 146 | 479 |
| 5 g/t | 54 g/t | 34 | 111.6 |
| 25 g/t | 45 g/t | 61 | 200.1 |
Where the historical drilling clusters
A historical contour map published by Lannister Mining shows drill holes from 1993 through 1997 grouped around two outlined areas, labeled Block A and Block B, with additional holes stepping out to the south. The densest drilling sits within the patented core.
Large parts of the claim block beyond these clusters have not been drilled, which is why the company describes the property as open along strike and untested regionally.
Is Basin Gulch on patented or unpatented land?
Both, with patented land at the core. Lannister Mining states Basin Gulch is primarily on patented land: 11 patented claims form the center of the property and 53 unpatented claims surround them. A patented claim is private land whose title has passed from the federal government, while an unpatented claim grants mineral rights on federal land and must be maintained each year.
Access and exploration upside
The property has easy, year-round access from Philipsburg, Montana, on paved and well-maintained gravel roads, and is about one hour from Butte. Year-round access means drilling and site visits are not limited to a short summer season. With two-thirds of the property still unexplored, Lannister Mining says future drilling will concentrate on additional mineralized target areas, alongside confirming historical intercepts.
For full technical detail, see the Basin Gulch property page on lannistermining.com.
Basin Gulch questions
Short answers here. The full mineral exploration FAQ has more.
Where is the Basin Gulch property?
The Basin Gulch property is in west-central Montana, in the historic Philipsburg Mining District. Lannister Mining states it has year-round access from Philipsburg on paved and well-maintained gravel roads and sits about one hour from Butte. The location map on the company property page shows the claim block in the forested mountains of western Montana.
How many drill holes have been completed at Basin Gulch?
Lannister Mining cites more than 320 historical drill holes at Basin Gulch. The company property map labels historical holes from 1987, a 1989 Chevron program and annual programs from 1993 through 1997. These holes give the company a data foundation that it plans to confirm and expand with new drilling.
How large is the Basin Gulch land package?
The total land package includes 11 patented claims and 53 unpatented claims covering 1,107 hectares, according to Lannister Mining. The property is underlain by a core of patented mining claims surrounded by unpatented claims. The company describes multiple high-priority targets near the historic resource area.
How much of Basin Gulch is still unexplored?
Lannister Mining states that two-thirds of the Basin Gulch property is still unexplored. The company also describes the mineralization as open at depth, open along strike and untested regionally. Future drilling, it says, will concentrate on additional mineralized target areas within the property as well as confirming historical intercepts.
What are the best historical drill results at Basin Gulch?
Highlights listed by Lannister Mining include 1.8 g/t gold over 162 meters from surface, 0.66 g/t gold over 326 meters from surface, 3.2 g/t gold over 72 meters from surface, 156 g/t gold over 3 meters and 25 g/t gold over 14 meters. These are historical results the company plans to confirm with new drilling.
Does Basin Gulch have a current mineral resource estimate?
Not yet. Lannister Mining describes a future maiden mineral resource estimate that will use historical drilling plus new work programs. The company states the property has potential to host a significant maiden estimate after expansion and confirmation drilling of historical intercepts. Until that estimate is published, historical results should be read as exploration data.
Has Basin Gulch been mined before?
Lannister Mining describes Basin Gulch as an asset that has seen significant historical work and has not been mined out. The historical work shown on company materials is mainly drilling and trenching. For the full history of earlier programs, the company investor presentation on lannistermining.com is the most detailed public source.