Martinez (märtē´nəs), city (1990 pop. 31,808), seat of Contra Costa co., W Calif., on Carquinez Strait between San Pablo and Suisun bays, in a farm area; inc. 1884. Its major industry is petroleum refining. The home of the naturalist John Muir, which has been preserved as a national historic site, is in the city. A naval weapons station adjoins the city, and part of the Central Valley project is nearby.
"Martinez." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (September 24, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/martinez
"Martinez." The Columbia Encyclopedia, 6th ed.. . Retrieved September 24, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/martinez