Black Diamond Mines Greathouse Visitor Center

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The Greathouse Visitor Center is located in an underground chamber excavated in the mid-1920s. View the workings of a 20th-century sand mine and learn about the lives of 19th-century coal and 20th-century sand miners. The center contains displays, photographs, and artifacts related to the park’s coal and sand mining eras.

Admission is free. Parking fee is $5 per vehicle on weekends and holidays (Visa/Master Card, cash or check only). For more information, call (510) 544-2750