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Oct 8, 2021 · Phone: 415-561-4900 United States Park Police Dispatch: Non-Emergency: 415-561-5505 Emergency: 415-561-5656 Contact Us
Alcatraz Island ( / ˈælkəˌtræz /) is a small island 1.25 miles (2.01 km) offshore from San Francisco, California, United States. [1] The island was developed in the mid-19th century with facilities for a lighthouse, a military fortification, and a military prison. In 1934, the island was converted into a federal prison, Alcatraz Federal ...
- 22 acres (8.9 ha)
- San Francisco, California
- 1934; 89 years ago
Jan 12, 2024 · Maps; Calendar; Fees; ... Alcatraz Island Golden Gate National Recreation Area B201 Fort Mason San Francisco, CA 94123 Phone: 415-561-4900
Feb 28, 2024 · Scientists and technology experts spent three weeks in December using cameras, drones and a robot dog to gather four trillion bytes of data to build the first 3-D map of the entire island in full ...
Mar 31, 2024 · Alcatraz Island, rocky island in San Francisco Bay, California, U.S. The island occupies an area of 22 acres (9 hectares) and is located 1.5 miles (2 km) offshore. Alcatraz Island. The federal penitentiary on Alcatraz Island, San Francisco Bay, California. The island had little vegetation and was a seabird habitat when it was explored in 1775 ...
- The Editors of Encyclopaedia Britannica
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Jan 18, 2024 · Alcatraz Island Cultural Landscape. Alcatraz Island is a 22.5 acre historic designed landscape in San Francisco Bay. Alcatraz Island occupies a commanding position nearly four miles directly east of the bay's entrance. Fog and high winds frequently pour in from the Pacific Ocean to buffet the island. Cliffs rising as high as 50 feet ring the ...