Union Hill Mine

E2050948 UNEXPLORED

Union Hill Mine is a historic gold mine located in California’s Grass Valley mining district, known for its role in the region’s 19th- and early 20th-century hard-rock gold production.

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Label	Occurrences
Union Hill Mine canonical	1

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Grass Valley mining district → containsMine → Union Hill Mine ⓘ