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| | San Francisco Bay |
 | | San Francisco Bay, 50 mi (80 km) long and from 3 to 13 mi (4.8–21 km) wide, W Calif.; entered through the Golden Gate, a strait between two peninsulas. |
 | | San Francisco is on the southern peninsula; on the northern peninsula are the residential suburbs of Marin co., while on the eastern shore of the crescent-shaped bay are such industrial cities as Alameda, Oakland, Berkeley, and Richmond. |
 | | The Bay Area is served by a network of bridges, most important of which are the Golden Gate Bridge, the San Francisco–Oakland Bay Bridge, the Richmond–San Rafael Bridge, and the San Mateo Bridge. |
| www.infoplease.com /id/A0843445 (462 words) |
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