Coastal region in Pittsburg, California

The Greathouse Visitor Center is a park and tourist attraction located on Nortonville Road in Pittsburg, California, United States. The center offers a variety of programs and tours related to the Black Diamond Mining History. The park's gate hours vary throughout the year, with parking fees applicable for vehicles, trailered vehicles, buses, and dogs. The center is temporarily closed for maintenance but staff are available on weekends for park information and activities. Visitors can explore the history of coal and sand mining in the area through exhibits, photographs, and artifacts at the Greathouse Visitor Center. Tours of the Hazel Atlas Mine and the new Coal Mine Experience exhibit are also available, with advanced reservations recommended. The park features 65 miles of trails through various types of vegetation, offering opportunities for hiking and nature study.