Property
Last updated: November 2026
Basin Gulch is a 1,107-hectare gold and silver oxide property in west-central Montana, explored by Lannister Mining. It is primarily on patented land, hosted in oxides, and has seen more than 320 historical drill holes. Mineralization is open at depth, along strike and untested regionally, and the property has potential to host a significant maiden mineral resource estimate after expansion and confirmation drilling.
Three things stand out: a deep record of historical drilling, near-surface oxide mineralization, and room to grow. More than 320 holes have already been drilled, highlight intercepts start at surface, and about two-thirds of the property has not yet been explored. Lannister Mining plans to use historical drilling and new work programs in a future maiden mineral resource estimate, then concentrate future drilling on additional mineralized target areas.
Land package
The total land package covers 1,107 hectares. A core of patented mining claims is surrounded by unpatented mining claims, forming a large, consolidated package with multiple high-priority targets near the historic resource.
Patented claims carry full title, while unpatented claims carry the right to explore federal land. Basin Gulch mineralization sits primarily on the patented core.
Access
The property has year-round access from Philipsburg, Montana on paved and well-maintained gravel roads, and is about one hour from Butte, Montana.
It lies in the heart of the historic Philipsburg Mining District, which led the original US silver boom in the late 1800s. Read more about gold exploration in Montana.
Lannister Mining reports these highlight intersections from historical drilling at Basin Gulch. The gram-metre column multiplies grade by length, a common way to compare intercepts; you can check any result with our grade-thickness calculator.
| Grade | Length (m) | Length (ft) | Note | Gram-metres |
|---|---|---|---|---|
| 1.8 g/t Au | 162 m | 531.5 ft | from surface | 291.6 |
| 0.66 g/t Au | 326 m | 1,069.6 ft | from surface | 215.2 |
| 3.2 g/t Au | 72 m | 236.2 ft | from surface | 230.4 |
| 156 g/t Au | 3 m | 9.8 ft | n/a | 468.0 |
| 25 g/t Au | 14 m | 45.9 ft | n/a | 350.0 |
| Result | Length (m) | Length (ft) |
|---|---|---|
| 62 g/t Au and 32 g/t Ag | 159 m | 521.7 ft |
| 4 g/t Au and 23 g/t Ag | 146 m | 479 ft |
| 5 g/t Au and 54 g/t Ag | 34 m | 111.6 ft |
| 25 g/t Au and 45 g/t Ag | 61 m | 200.1 ft |
Open at depth, along strike and untested regionally.
With two-thirds of the Basin Gulch Property still unexplored, the company sees substantial exploration upside. The work ahead follows a clear order: confirm historical drill intercepts, expand known mineralization at depth and along strike, prepare a maiden mineral resource estimate, and test additional mineralized target areas.
The company points to a clear market premium for SK1300 and NI 43-101 compliant gold and silver ounces in the USA, which is why a compliant maiden estimate is the central milestone. For how investors weigh these factors, see how to value a gold exploration company, or return to the Lannister Mining gold exploration company overview.
Questions about Basin Gulch, the investor presentation or partnering? Reach Ken Cotiamco at 604-687-7130 or IR@lannistermining.com.
