Mine · Tuolumne County, California, United States

Blue Mountain Minerals

Blue Mountain Minerals is a mine in Tuolumne County, California, United States, owned by Portola Minerals Company.

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
Name in the source	BLUE MOUNTAIN MINERALS	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Location	Tuolumne 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	crushed limestone (mainly crushed limestone)	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Owner	Portola Minerals Company (controls the operator)	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Operator	Blue Mountain Minerals	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Employees	73 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	38.0694, -120.4231	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.

Within 50 km of this mine: 53 water rights (37 active), measured from the coordinates in the facts above. The table shows the nearest 3.

Name	Kind	Size	Status	Distance
Stanislaus River irrigation right A001081	Water right	96,195 acre-ft/year	Active	15 km
Stanislaus River municipal and irrigation right A014858B	Water right	1,000,000 acre-ft/year	Permitted	16 km
Stanislaus River power right A014859	Water right	5,323,865 acre-ft/year	Permitted	16 km