Near Antioch in Contra Costa County, California — The American West (Pacific Coastal)
Coal was carried by rail from the mines to Pittsburg Landing on the San Joaquin River, and from there by riverboat to markets in San Francisco, Stockton, and Sacramento.
By the late 1800s, mines began to close due to increased production costs and competition from higher quality Washington Territory coal. The town of Somersville slowly died.
Mine waste rock piles, exotic trees planted by residents, and Rose Hill Cemetery are all that remain.
Erected by East Bay Regional Park District.
Location. 37° 57.46′ N, 121° 51.833′ W. Marker is near Antioch, California, in Contra Costa County. Marker can be reached from Somersville Road. Touch for map. Marker is at or near this postal address: 5175 Somersville Road, Antioch CA 94509, United States of America.
Other nearby markers. At least 8 other Mount Diablo Coal Field (within shouting distance of this marker); Independent Mine (about 400 feet away, measured in a direct line); Greenhouse Portal (approx. 0.2 miles away); Sidney Flat (approx. one mile away); Black Diamond Way (approx. 4 miles away); The Growler Saloon – Goethals Building (approx. 4 miles away); The Clayton Post Office (approx. 4 miles away); The Joel Clayton House (approx. 4 miles away). Touch for a list and map of all markers in Antioch.
More about this marker. This marker is located south of the parking lot on the Somersville Trail in Black Diamond Regional Park,
Categories. • Industry & Commerce • Settlements & Settlers •
Credits. This page was last revised on June 16, 2016. This page originally submitted on April 5, 2016, by Barry Swackhamer of San Jose, California. This page has been viewed 190 times since then and 8 times this year. Photos: 1, 2. submitted on April 5, 2016, by Barry Swackhamer of San Jose, California.