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Fort Alcatraz

Fort Alcatraz

United States Army coastal fortification.

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Readers' pathsAug 2026 – Oct 2026

Readers go next to

Share of the 316 clicks on its links

  1. Alcatraz Federal Penitentiary

    Former island prison in San Francisco Bay.

    49%

  2. Alcatraz Island

    Island in San Francisco Bay, California, US.

    23%

  3. Seacoast defense in the United States

    Coastal forts construction and maintenance in the U.S.

    21%

  4. Sallyport

    Secure, controlled entryway to a fortification or prison.

    3.5%

  5. Board of Fortifications

    American defensive evaluation boards.

    3.2%

Readers come from

Share of the 1,054 readers arriving from another article

  1. Alcatraz Island

    Island in San Francisco Bay, California, US.

    51%

  2. Portsmouth Naval Prison

    Former U.S. Navy and Marine Corps prison in Kittery, ME.

    6.6%

  3. Seacoast defense in the United States

    Coastal forts construction and maintenance in the U.S.

    5.7%

  4. Alcatraz Island Lighthouse

    Lighthouse in the San Francisco Bay, California.

    0.95%

  5. Alcatraz Hospital

    Hospital in California, United States.

    0.95%