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Maiden mineral resource estimate

The Basin Gulch Maiden Resource Plan

Lannister Mining plans to build a maiden mineral resource estimate for Basin Gulch from its historical drilling, confirmation and expansion drilling, and new work programs.

The company states that Basin Gulch has potential to host a significant maiden mineral resource estimate after expansion and confirmation drilling of historical drill intercepts. The mineralization is open in multiple directions and at depth, and future drilling will also test additional target areas on the property.

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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 recognized reporting standard. It turns a collection of drill holes into a single, structured statement of what a deposit may contain.

Why it is the key Basin Gulch milestone

Lannister Mining states that US-based companies with NI 43-101 compliant resources trade at a significant premium compared to their peers, and that there is a clear market premium for S-K 1300 and NI 43-101 compliant gold and silver ounces in the USA. A maiden resource is how Basin Gulch would enter that group.

The reporting standards

NI 43-101 is the Canadian standard for disclosing mineral project information. S-K 1300 is the US Securities and Exchange Commission rule for mining property disclosure, set out in the SEC final rule. Both require estimates to be prepared by a qualified person.

How will Basin Gulch get to a maiden resource?

Lannister Mining describes the work below. The order shows how the pieces depend on each other; it is not a published schedule.

  1. Build on more than 320 historical holes

    The historical drill database and trench results show where gold-silver mineralization has already been intersected.

  2. Confirmation drilling

    New holes check that historical drill intercepts can be reproduced, so the older data can be relied on.

  3. Expansion drilling

    Drilling steps out where the mineralization is open in multiple directions, along strike and at depth.

  4. New target areas

    Future drilling concentrates on additional mineralized target areas across a property that is two-thirds unexplored.

  5. Maiden mineral resource estimate

    Historical drilling and new work programs are combined in the first formal resource estimate for Basin Gulch.

When will the Basin Gulch resource estimate be released?

No date is stated on this site. Lannister Mining describes the estimate as future work. For current timing and program details, read the USA investor presentation (June 2026) or visit the Lannister Mining invest page.

To see the data the estimate will build on, review Basin Gulch historical drilling, or return to the Basin Gulch project overview. For how a resource fits into the wider process, see the stages of mineral exploration.

Keep exploring Basin Gulch

Questions about the Basin Gulch maiden resource

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.
When will Basin Gulch have a resource estimate?
No date is stated on this site. Lannister Mining says historical drilling and new work programs will be used in a future maiden mineral resource estimate. For current timing, check the latest investor presentation and news on the company website at lannistermining.com, which carries its most recent disclosures.
What is confirmation drilling?
Confirmation drilling means drilling new holes near historical holes to check that the original results can be reproduced with modern methods. Lannister Mining says Basin Gulch could host a significant maiden resource after expansion and confirmation drilling of historical drill intercepts.
What is expansion drilling?
Expansion drilling tests beyond the known limits of mineralization to see how far it extends. Because Basin Gulch mineralization is reported open at depth, along strike and in multiple directions, expansion drilling can target those open edges. Future drilling will also test additional target areas on the property.
What are NI 43-101 and S-K 1300?
NI 43-101 is the Canadian standard for disclosing mineral project information, and S-K 1300 is the US Securities and Exchange Commission rule for mining property disclosure. Lannister Mining notes a clear market premium for gold and silver ounces in the USA that comply with these technical report standards.
What comes after a maiden resource estimate?
After a first resource estimate, exploration companies typically keep drilling to grow and upgrade the resource, then move toward economic studies. Lannister Mining describes its plan as further exploration and development toward a maiden resource; its investor presentation is the place to check stated plans beyond that milestone.
Why does a compliant resource matter for valuation?
Lannister Mining states that US-based companies with NI 43-101 compliant resources trade at a significant premium compared to their peers. A compliant resource gives investors a standardized estimate prepared by a qualified person, which is why the company treats a Basin Gulch maiden resource as a key milestone.
See all 44 questions in the Basin Gulch FAQ

Published by Lannister Mining