Domestic Metals Intersects Copper Alteration in Montana

Two initial Smart Creek drill holes in Granite County, Montana show carbonate replacement deposit-style alteration, with first assays expected in late November.

Updated on Nov. 5, 2026 in Economic Indicators

Bold flat-color editorial illustration of a banded rock core resting on a bare surface before a distant ridge, evoking early-stage copper exploration in Montana. — Domestic Metals reported carbonate replacement-style copper alteration in its first two Smart Creek drill holes in Granite County, Montana, with first assays expected in late November. AI Illustration. Upload story photo >

Domestic Metals has intersected carbonate replacement deposit-style alteration in the first two drill holes at its Smart Creek copper-gold-silver project in Granite County, Montana. The holes totaled about 1,111 metres, and core from both contains evidence of copper-bearing mineralization.

Why it matters

The results support the company's effort to delineate CRD-style mineralization at the Gold Coin Prospect, a target first identified by Rio Tinto. For Montana, the drilling adds to exploration activity in the Maxville Mining District.

Drill core observations from the company's inaugural program show strong copper and sulphide mineralization between about 151 and 316 metres, compared with historical Gold Coin Prospect intercepts of 110 metres at 0.8% copper and 89 metres at nearly 1% copper. Laboratory assays have not yet been reported, so the grade of the new intercepts remains unknown.

The players

Domestic Metals

Domestic Metals is the company conducting the drilling and exploration at the Smart Creek project in Granite County, Montana.

Rio Tinto

Rio Tinto is the global mining company that identified the Gold Coin Prospect as a target before Domestic Metals' current drilling.

The details

Domestic Metals completed the two holes as part of its first diamond drilling program at Smart Creek and sent samples from the first hole to a lab for analysis. Scheelite was identified at 126.1 metres, and the company plans to extend the mineralized zone through further drilling and test additional epithermal and porphyry targets at Sunrise and Radio Tower.

November 5, 2026: Company announces CRD-style alteration in the first two holes.
Late November 2026: First assay results from the first hole are expected.

Market Landscape

The Smart Creek results fit within the carbonate replacement deposit exploration model that has guided work in the Maxville Mining District of Granite County. Historical Gold Coin intercepts established the target, and the current drilling tests whether that mineralization continues at depth.

For Montana residents, the drilling signals continued mineral exploration in Granite County, which can bring temporary employment and local spending tied to field operations. Investors and local stakeholders should watch the late-November assay results, since grades will determine whether the mineralization warrants further work.

The takeaway

Watch for the late-November assays, because grade results will show whether the copper alteration at Smart Creek holds economic promise beyond the first two holes.