Port Chicago disaster occurred in this town in what county of California?
Port Chicago, California Port Chicago was a town on the southern banks of Suisun Bay, in Contra Costa County, California. It was located 6.5 mi east-northeast of Martinez, at an elevation of 13 feet (4 m). It is best known as the site of a devastating explosion at its Naval Munitions Depot during World War II.
El Sobrante, California El Sobrante (Spanish for "surplus" or "remaining land"; Spanish: ] ) is a census-designated place (CDP) in Contra Costa County, California, United States. The population was 12,669 at the 2010 census.