Skip to content
Basin Gulch

Gold and silver exploration in west-central Montana

The Basin Gulch Project

The Basin Gulch project is Lannister Mining's gold and silver property in west-central Montana, explored through more than 320 historical drill holes.

Basin Gulch hosts near-surface, oxide-hosted gold-silver mineralization on mostly patented land in the historic Philipsburg Mining District. Lannister Mining reports the mineralization is open at depth and along strike, that two-thirds of the property is unexplored, and that it plans further exploration toward a maiden mineral resource estimate.

Explore the drill history

Last updated:

Highlight interceptsGold mineralization starting at surface
Surface
  • 1.8 g/tAu over 162 m (531.5 ft)
  • 0.66 g/tAu over 326 m (1,069.6 ft)
  • 3.2 g/tAu over 72 m (236.2 ft)

Historical results as reported by Lannister Mining. Column depth is drawn to scale from surface.

What is the Basin Gulch project?

The Basin Gulch project is a gold and silver exploration property in west-central Montana, advanced by the mineral exploration company Lannister Mining. It sits in the heart of the historic Philipsburg Mining District, which Lannister Mining says led the original US silver boom in the late 1800s.

Basin Gulch, defined

Basin Gulch is a gold-silver exploration project owned and explored by Lannister Mining. The property is primarily on patented land and covers 1,107 hectares across 11 patented claims and 53 unpatented claims, with a core of patented claims surrounded by unpatented ground.

Its mineralization is near surface and hosted in oxides. More than 320 historical drill holes have tested it, and Lannister Mining reports it remains open at depth, along strike and untested regionally. About two-thirds of the property is still unexplored. Basin Gulch is not a mine: the next milestone is a maiden mineral resource estimate, the first formal estimate of what the property contains.

Basin Gulch by the numbers

historical drill holes
320+
hectares in the land package
1,107
patented mining claims
11
unpatented mining claims
53
of the property still unexplored
2/3
from Butte, Montana
1 hr

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

Basin Gulch gold silver mineralization

Basin Gulch gold silver mineralization is near surface, hosted in oxides and open in multiple directions. Lannister Mining describes high-grade gold-silver mineralization near surface, which it links to significant implied flexibility in a future mine design.

Trenching sampled both metals over long distances at surface. Read the full breakdown on the Basin Gulch gold and silver page.

Basin Gulch gold silver trench highlights reported by Lannister Mining
GoldSilverLength
62 g/t Au32 g/t Ag159 m (521.7 ft)
4 g/t Au23 g/t Ag146 m (479 ft)
5 g/t Au54 g/t Ag34 m (111.6 ft)
25 g/t Au45 g/t Ag61 m (200.1 ft)

Basin Gulch historical drilling

Basin Gulch historical drilling totals more than 320 holes. Three of the highlight intercepts start at surface, including 0.66 g/t gold over 326 meters, and others reach high grades over shorter widths, such as 156 g/t gold over 3 meters.

These are historical results. Lannister Mining plans confirmation and expansion drilling so the data can support a maiden resource. See every highlight on the Basin Gulch historical drilling page.

Basin Gulch historical drilling: highlight drill hole intersections reported by Lannister Mining
Gold gradeIntervalStarts
1.8 g/t Au162 m (531.5 ft)From surface
0.66 g/t Au326 m (1,069.6 ft)From surface
3.2 g/t Au72 m (236.2 ft)From surface
156 g/t Au3 m (9.8 ft)Not stated
25 g/t Au14 m (45.9 ft)Not stated

How does Basin Gulch compare with an early-stage property?

A grassroots exploration property usually starts with mapping and sampling, while Basin Gulch starts with a large drill database. The table sets the Basin Gulch project beside a typical early-stage property on the same five criteria.

Basin Gulch project (Lannister Mining) compared with a typical early-stage exploration property
CriterionBasin Gulch projectTypical early-stage property
Drill dataMore than 320 historical drill holesFew or no drill holes; targets come from mapping and sampling
Land11 patented and 53 unpatented claims, 1,107 hectares, primarily patented landVaries widely by project
MineralizationNear-surface, oxide-hosted gold-silver, open at depth and along strikeNot yet confirmed by drilling
AccessYear-round from Philipsburg; about one hour from ButteVaries; remote sites can be seasonal
Next milestoneMaiden mineral resource estimateA first drill discovery

The early-stage column describes general industry patterns, not any specific company or project.

How does Basin Gulch get to a maiden resource?

Lannister Mining describes four pieces of work that lead from historical data to a maiden mineral resource estimate. Future drilling will also concentrate on additional target areas across the two-thirds of the property that is still unexplored. Details are on the maiden resource plan page.

  1. Compile the historical record

    Bring together more than 320 historical drill holes and the trench results as the starting data set.

  2. Confirm historical intercepts

    Drill confirmation holes to check that historical drill intercepts can be reproduced.

  3. Expand where it is open

    Step out where mineralization is open in multiple directions, along strike and at depth.

  4. Deliver a maiden resource

    Combine historical drilling and new work programs in a future maiden mineral resource estimate.

What should investors do after exploring Basin Gulch?

Prospective investors should first understand the Basin Gulch drill history and the plan toward a maiden resource, then ask Lannister Mining for the investor briefing. The company publishes a USA investor presentation dated June 2026 on the Lannister Mining invest page.

A step-by-step reading list is on the Basin Gulch investors page, and the people behind the project are on the team page.

Explore the Basin Gulch project

Basin Gulch project questions

What is the Basin Gulch project?
The Basin Gulch project is a gold and silver exploration property in west-central Montana explored by Lannister Mining. More than 320 historical drill holes have tested its near-surface, oxide-hosted mineralization, and the company plans further exploration and development work toward a maiden mineral resource estimate.
How many drill holes have been completed at Basin Gulch?
More than 320 historical drill holes have been completed at Basin Gulch. Those holes explored the near-surface mineralization and form the base data set that Lannister Mining plans to use, together with new work programs, toward a future maiden mineral resource estimate for the property.
What metals are found at Basin Gulch?
Gold and silver are the focus at Basin Gulch. Historical drilling reported gold intercepts, and trench sampling reported both gold and silver grades, such as 4 g/t gold and 23 g/t silver over 146 meters. Lannister Mining describes the target as near-surface, oxide-hosted gold-silver mineralization.
Is Basin Gulch a producing mine?
No. Basin Gulch is an exploration-stage project, not a producing mine. Lannister Mining notes the property has seen significant historical work but has not been mined out. The current plan is further exploration and development aimed at a maiden mineral resource estimate, which comes before any mining study.
How big is the Basin Gulch land package?
The Basin Gulch land package totals 1,107 hectares, made up of 11 patented claims and 53 unpatented claims. The property is underlain by a core of patented mining claims surrounded by unpatented mining claims, and Basin Gulch is primarily on patented land.
What is a maiden mineral resource estimate?
A maiden mineral resource estimate is the first formal estimate of the tonnes and grade of mineralization on a property, prepared under a reporting standard. For Basin Gulch, Lannister Mining plans to use historical drilling and new work programs to produce its first resource estimate.
How can investors get the Basin Gulch investor briefing?
Lannister Mining publishes its investor presentations on the invest page of its main website, lannistermining.com/invest, including a USA investor presentation dated June 2026. Investors and partners can ask the company investor relations team for the investor briefing through that page.
See all 44 questions in the Basin Gulch FAQ

Published by Lannister Mining