San Francisco, city (1990 pop. 723,959), coextensive with San Francisco co., W Calif., on the tip of a peninsula between the Pacific Ocean and San Francisco Bay, which are connected by the str...

San Francisco–Oakland Bay Bridge, double-decked structure, W Calif.; built 1933–36. It has a total length of 8.25 mi (13.2 km). From San Francisco it crosses the bay to Yerba Buena Island, whe...

San Quentin, peninsula extending into San Francisco Bay, W Calif., N of San Francisco. The state prison there was begun in 1852. San Quentin is the western terminus of the Richmond–San Rafael ...

Drake's Bay, inlet of the Pacific Ocean, formed by the San Andreas fault, W Calif., NW of San Francisco. Point Reyes forms its outer arm. The bay was visited by Sir Francis Drake in 1579.

San Mateo, city (1990 pop. 85,486), San Mateo co., W Calif., on San Francisco Bay; inc. 1894. It is a commercial and retail center with some high-technology manufacturing. San Mateo, Spanish f...

San Rafael, residential city (1990 pop. 48,404), seat of Marin co., W Calif., a suburb of San Francisco on the northern shore of San Francisco Bay; inc. 1913. Several large companies have thei...

San Bruno, city (1990 pop. 38,961), San Mateo co., W Calif., a suburb on San Francisco Bay; inc. 1914. There is light manufacturing and petroleum refining. The Golden Gate National Cemetery, a...

San Leandro, city (1990 pop. 68,223), Alameda co., W Calif., on San Francisco Bay; inc. 1872. Metal, wood, and paper products; chemicals; leather goods; foods and beverages; medical equipment;...

San Joaquin, river, c.320 mi (510 km) long, rising in the Sierra Nevada, E Calif., and flowing W then N through the S Central Valley to form a large delta with the Sacramento River near Suisun...

Richmond–San Rafael Bridge, W Calif., c.4 mi (6 km) long, part of the network of bridges serving the San Francisco Bay area; completed in 1957. It provides an essential link between the east s...