Empire Mine State Historic Park

Grass Valley, Nevada County, California · State Historic Park

Historic gold mining site near Grass Valley featuring preserved mine buildings, English-style gardens, and miles of forested trails for hiking, biking, and horseback riding through the Sierra foothills.

Top trails

• Hardrock Trail Loop — 2.4 mi loop
• Osborne Hill Loop Trail — 2.1 mi loop
• Osborn Hill Loop Trail — 1.5 mi loop
• Upper Union Hill Trail — 1.0 mi one way
• Ophir Hill and Orleans Mine via Hardrock and Union Hill Trail — 5.9 mi loop

Coordinates: 39.2060, -121.0439.

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