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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.
- The Editors of Encyclopaedia Britannica
Oct 8, 2021 · NPS. Alcatraz Island Map. This is a general map of the island showing various structures. For your safety, please listen to the announcements at the dock, since various areas of the island are closed to the public depending on the season. Open the PDF of the Island map by clicking here.
Average elevation: 230 ft. Visualization and sharing of free topographic maps. Alcatraz Island, San Francisco, CAL Fire Northern Region, California, United States.
- Geography
- Ecology
- Brief History
The Alcatraz Island is a barren irregularly shaped rock that measures 511m by 180m and is 41m at its highest point during mean tide. The island served as the site of an abandoned federal prison, military fortifications, and the oldest operating lighthouse that is located on the PacificCoast of the United States. Besides these, the island also conta...
The sandstone rock of Alcatraz Island was changed into a beautiful garden by the families of the military and the prison guards. However, after the closure of the prison, these gardens became overgrown. Currently, these gardens are being restored by staff members and volunteers. Many original plants were also rediscovered by the workers while clear...
The name “Alcatraz” has been derived from the Spanish word “Alcatraces”. In August 1775, the Spanish explorer and naval officer Juan Manuel de Ayala became the first European to map the San Francisco Bay and its islands. He named one of the islands on the bay as “La Isla de Los Alcatraces” (“Island of Pelicans”). In 1776, an English naval officer a...
- Diptarka Ghosh
Coordinates: 37°49′36″N 122°25′22″W. 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.
- 22 acres (8.9 ha)
- San Francisco, California
- 1934; 89 years ago
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Nearest city: San Francisco, California. Area: 22.86 acres (7.63 ha) Established: 1934. Governing body: National Park Service. Alcatraz Island, commonly referred to as simply Alcatraz or locally as The Rock, is a small island located in the middle of San Francisco Bay in California, United States .
Alcatraz is located in San Francisco Bay, approximately 1.25 miles (2.01 km) from the northern shore of San Francisco.
