|County||Contra Costa County|
|Elevation||56 ft (17 m)|
Herpoco was an unincorporated community in Contra Costa County, California. It is located on the Atchison, Topeka and Santa Fe Railroad 5 miles (8 km) east of Point Pinole in Pinole, at an elevation of 56 feet (17 m). The place was started and named by railroad officials for the Hercules Powder Company.
The Hercules Powder Company located here in 1881. The town of Hercules was incorporated in 1900, and included all the surrounding area. The Herpoco reference has fallen into disuse, and is now found almost exclusively on USGS maps.
- U.S. Geological Survey Geographic Names Information System: Herpoco, California
- Durham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Quill Driver Books. p. 642. ISBN 9781884995149.
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