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Alcatraz Island
Alcatraz Island is an island located in the San Francisco Bay, 1.5 miles (2.4 km) offshore from San Francisco, California. Often referred to as The Rock, the small island early-on served as a lighthouse, a military fortification, a military prison, and a federal prison until 1963. Later, in 1972,...
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San Francisco
San Francisco is the fourth most populous city in California and the 12th most populous city in the United States, with a 2008 estimated population of 808,976. It is the second most densely populated large city in North America and is the financial,...
Area:
- 600.67004 km² (231.92 mi² )
Time zone(s):
San Francisco Bay
San Francisco Bay is a shallow, productive estuary through which water draining from approximately forty percent of California, flowing in the Sacramento and San Joaquin rivers from the Sierra Nevada mountains, enters the Pacific Ocean. Technically,...
Golden Gate National Recreation Area
The Golden Gate National Recreation Area (GGNRA) is a U.S. National Recreation Area administered by the National Park Service that surrounds the San Francisco Bay area. It is one of the most visited units of the National Park system in the United...
Area:
- 302.7858 km² (116.9062 mi² )
