Mine · Madison County, Montana, United States

Garnet USA LLC

Garnet USA LLC is a mine in Madison County, Montana, United States, owned by GMA Garnet Group; Idaho State Gold Company (ISGC).

Facts

Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.

Fact	Value	Source
Location	Madison County	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Status	Operating (active)	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Commodities	gemstones (mainly gemstones)	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Owner	GMA Garnet Group; Idaho State Gold Company (ISGC) (controls the operator)	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Operator	Garnet USA LLC	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Employees	55 people (annual average, in 2025)	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Mine type	Surface	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Coordinates	45.3719, -112.1289	MSHA Mines Data Set · Public domain · checked 24 Oct 2026

Research on this mine and its owner.Who owns it up to the parent company, its permits, resources and offtake, and an introduction to the owner.