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Basin GulchLannister Mining

Gold exploration

What is a gold exploration company?

A gold exploration company finds and tests gold deposits to prove whether they can be mined, rather than running a mine itself.

Gold exploration companies map, sample, trench and drill, then work toward a formal mineral resource estimate. Lannister Mining is one: it is exploring the Basin Gulch gold-silver property in west-central Montana, which has more than 320 historical drill holes and near-surface mineralization.

Published by Lannister Mining.

Last updated: Published by Lannister Mining

How do you compare gold exploration companies?

Compare gold exploration companies on the same criteria: jurisdiction, size of the drilling record, grade and length of results, land position, stage of work and team history. There is no official list of top gold exploration companies; this page applies those criteria to one explorer, Lannister Mining, so readers can use the same checklist on others.

Definition

What is gold exploration?

Gold exploration is the work of finding and defining gold deposits before any mine is built. It starts with geology and surface sampling, moves to trenching and drilling, and ends, if results justify it, with a mineral resource estimate and technical studies.

Lannister Mining's work at Basin Gulch shows the middle of that path: a property with more than 320 historical drill holes and trench results, mineralization open at depth and along strike, and a plan for confirmation drilling leading to a maiden mineral resource estimate. Most exploration projects never become mines, which is why investors judge explorers carefully.

By the numbers

Drilling in the wider industry, by the numbers

Published figures from oil and gas basins that also rank for drilling searches. They describe the Permian, not Basin Gulch or gold.

rise in feet drilled per rig per month in the Midland basin since Q1 2023 (Novi Labs, via Reuters)
25%
fall in Permian oil per foot drilled so far in 2025 vs 2024 average (Morgan Stanley, via Reuters)
8%
Permian drilling locations economic below $50 per barrel (Enverus, April 2026, via EnergyNow)
~55,000
drilling cost decline that may make a marginal location attractive (EnergyNow)
20%

Comparison

Explorer, developer or producer?

Stages of the gold mining industry, with Lannister Mining placed at its stage
CriterionExplorer (Lannister Mining)DeveloperProducer
Main workMapping, sampling, drillingStudies, permits, financingMining and processing
RevenueNone from productionNone from productionMetal sales
Key milestoneResource estimateConstruction decisionSteady output
Typical riskHighestHighLower

Lannister Mining describes itself as a Montana-based gold and silver developer focused on advancing Basin Gulch; its current work is exploration drilling toward a maiden resource estimate.

Step by step

A checklist for judging any gold exploration company

  1. Jurisdiction

    Lannister Mining: Philipsburg Mining District, Montana, USA.

  2. Drilling record

    Lannister Mining: more than 320 historical drill holes at Basin Gulch.

  3. Grade and length

    Lannister Mining: for example 1.8 g/t Au over 162 m from surface.

  4. Land position

    Lannister Mining: 11 patented and 53 unpatented claims, 1,107 hectares.

  5. Stage

    Lannister Mining: working toward a maiden mineral resource estimate.

  6. Team

    Lannister Mining: people linked to K92 Mining, Thesis Gold and others.

What is the impact of mining on the environment?

Mining can affect land, water, air and wildlife through ground disturbance, waste rock, water use and dust. Exploration usually has a far smaller footprint: drill pads, access trails and sumps that are reclaimed after work. In Montana, hard rock exploration and mining are regulated by the Department of Environmental Quality, including reclamation requirements.

How we chose these criteria

This page was written by Lannister Mining, which publishes this site and explores Basin Gulch. The checklist uses criteria common across exploration investing, applied only with facts Lannister Mining publishes. It is not an independent ranking. See our methodology or the Basin Gulch drilling overview.

Useful outside sources

Common questions about Basin Gulch

See all 46 questions

What is a gold exploration company?

A gold exploration company searches for gold deposits and works to prove whether they can be mined, rather than operating a mine itself. Its work includes mapping, sampling, trenching, drilling and, eventually, mineral resource estimates. Lannister Mining is a gold exploration company: it is exploring the Basin Gulch gold-silver property in west-central Montana.

Open in the FAQ: What is a gold exploration company?

What is gold exploration?

Gold exploration is the process of finding and defining gold deposits. It usually moves from geological mapping and surface sampling to trenching and drilling, then to resource estimation and technical studies. At Basin Gulch, more than 320 historical drill holes and trench programs have been completed, and confirmation and expansion drilling are the next stages Lannister Mining describes.

Open in the FAQ: What is gold exploration?

What are the top gold exploration companies?

There is no single official list of top gold exploration companies; rankings depend on criteria such as jurisdiction, grade, size of the drilling database and stage of development. This site covers one company, Lannister Mining, and its Basin Gulch Property. To compare explorers fairly, review each company technical reports, drill results, land position and team history on the same terms.

Open in the FAQ: What are the top gold exploration companies?

Is Lannister Mining a gold mining company in the USA?

Lannister Mining is a gold and silver exploration company whose project, the Basin Gulch Property, is in Montana, USA. It is not currently a producing miner. Its focus is advancing Basin Gulch toward a maiden mineral resource estimate in a jurisdiction the company describes as safe, the historic Philipsburg Mining District.

Open in the FAQ: Is Lannister Mining a gold mining company in the USA?

How does the gold mining industry work?

The gold mining industry generally runs in stages: exploration companies find and define deposits, developers complete studies, permits and financing, and producers build and operate mines that sell metal. Projects are often sold or partnered between stages. Lannister Mining sits at the exploration stage, using historical drilling at Basin Gulch as a base for new work.

Open in the FAQ: How does the gold mining industry work?

What is the impact of mining on the environment?

Mining can affect land, water, air and wildlife through ground disturbance, waste rock, water use and dust, and impacts vary widely with the type of mine and how it is managed. Exploration usually has a much smaller footprint than mining. In Montana, hard rock exploration and mining are regulated by the Montana Department of Environmental Quality, including reclamation requirements.

Open in the FAQ: What is the impact of mining on the environment?

Published by Lannister Mining