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Featured view of Empire Mine State Historic Park in Grass Valley, California

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Empire Mine State Historic Park

Grass Valley, California

A preserved hard-rock mining complex where visitors can explore the industrial workings, elegant estate, and landscaped grounds of one of California’s richest gold mines.

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About Empire Mine State Historic Park

Empire Mine State Historic Park preserves one of California’s oldest, deepest, and most productive hard-rock gold mines. Operating for more than a century before closing in 1956, the mine developed an immense underground network and produced millions of ounces of gold, illustrating the technological and corporate evolution of mining after the early placer-mining phase of the California Gold Rush.

The historic area includes mine-yard buildings, equipment, the entrance to the underground workings, a blacksmith shop, and a visitor center displaying a remarkable scale model of the mine’s hundreds of miles of tunnels. The park also preserves the Bourn family’s country estate, known as the Cottage, together with its clubhouse and restored English-style gardens, revealing the sharp contrast between executive life and the demanding labor of underground miners.

Guided estate, mine-yard, and seasonal garden tours are included with entry when staffing and weather permit. Beyond the historic core, visitors can use miles of trails through the park’s forested backcountry, making the site a strong combination of industrial history, architecture, gardens, and outdoor recreation.

Visitor Essentials

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Hours

Historic grounds are open daily from 10:00 a.m.–5:00 p.m. March 1–October 31 and 10:00 a.m.–4:00 p.m. November 1–February 28. The historic grounds are closed Thanksgiving Day, Christmas Day, and New Year’s Day. Park trails and the Penn Gate parking lot are open daily from sunrise to sunset. Guided-tour schedules vary by season and may change because of volunteer availability, heat, or other weather conditions.

Admission

Historic grounds: $5 per person for adults and youth age 6 and older; children age 5 and under are free. Regular public guided tours are included with admission when offered. Park trails and parking are free.

Hours and admission prices may change. Confirm current details on the official website before visiting.

Historical Connections

Empire Mine State Historic Park: History and Visitor Guide | Roads of History