Bighorn Metals Corp. (CSE: HRNY) announced on November 10, 2026, that it is advancing preparations for a Phase I exploration program at its Marietta Project in Nevada's Silver Star Mining District. The company highlighted extensive historical mine workings and reported multi-metal occurrences spanning gold, silver, copper, and base metals across the property. Investors may be watching for the outcome of ongoing geological review and an independent technical report being prepared under National Instrument 43-101.

Key Points

  • Bighorn Metals Corp. (CSE: HRNY) is an exploration-stage mineral company with projects in Nevada and British Columbia.
  • The company is advancing Phase I exploration at the Marietta Project, covering 12 patented lode mining claims in Mineral County, Nevada.
  • Historical sampling reportedly returned values of up to 66.1 g/t gold, 169 g/t silver, and 4.3% copper; these results have not been independently verified by the company.
  • Investors should watch for completion of the NI 43-101 technical report and confirmation of permitting and financing to proceed with fieldwork.

Marietta Project's Historical Workings and Reported Mineralization

The Marietta Project encompasses patented ground covering the historic Marietta Mines alongside several adjacent historical mine areas, including the Endowment, Black Hawk, Silver Gulch, Birdsong, and Badger sites. Historical records describe a network of shafts, adits, declines, prospect pits, and surface workings. A 2008 unpublished report by McMaster reportedly documents a Black Hawk area sample assaying 186.59 ounces per ton silver. The company has not independently verified the sampling methodology, location, or quality-assurance procedures behind this result, and cautions it should not be relied upon as representative of broader project mineralization.

Phase I Program to Focus on Mapping, Sampling, and Historical Data Compilation

The proposed Phase I program is expected to include compilation and assessment of historical geological and exploration records, relocating and mapping historical workings, geological reconnaissance, and targeted sampling of rock exposures, mine dumps, and accessible historical workings. Soil sampling and other surface exploration methods may also be employed to help prioritise exploration targets. The scope, timing, and completion of field activities remain subject to applicable permitting, access requirements, financing availability, personnel, weather, and other operating considerations, and there is no assurance the program will proceed as contemplated.

Rare Earth Element Assessment Added to Geological Review Scope

As part of its broader geological review, Bighorn Metals stated it intends to assess available geological information to determine whether exploration for rare earth elements at the Marietta Project is warranted. The company was explicit that no mineral resource containing rare earth elements has been established on the project, and that additional geological assessment, fieldwork, and analytical testing would be required before any such exploration could be evaluated. The disclosure suggests the rare earth element review remains preliminary and entirely contingent on the outcomes of further study.

Independent Technical Report Commissioned Under NI 43-101

The company has engaged Gregory C. Ferdock, M.Sc., C.P.G., as an independent Qualified Person to prepare a technical report in accordance with National Instrument 43-101. Mr. Ferdock reviewed available historical information to approve the scientific and technical disclosures in this announcement but has not yet completed a personal site inspection or independently verified historical sampling results. The release states that additional technical detail regarding historical mine areas, sampling, and rare earth element potential may be incorporated following his review.