Legends of Alcatraz Legends of Alcatraz Located in the San Francisco Bay, Alcatraz Island and Alcatraz Federal Penitentiary have been cited as one of the most haunted places in America, and also as the most haunted prison in the country. The Native Americans mentioned the evil spirits they purportedly encountered on the island long before it became a federal prison. Mark Twain documented the eerie atmosphere of the island after visiting it, described it as "being as cold as winter, even in the summer months." Prisoners, rangers and visitors have reported a wide range of alleged ghostly activity on Alcatraz, from whispering in
Alcatraz Citadel compensation for his initiative in purchasing and securing Alcatraz Island for the U.S. government, but the U.S. government later invalidated the sale and paid Fremont nothing. Fremont and his heirs sued for compensation during protracted but unsuccessful legal battles that extended into the 1890s. Following the acquisition of California by the United States as a result of the Treaty of Guadalupe Hidalgo which ended the Mexican–American War (1848), and the onset of the California Gold Rush the following year, the U.S. Army began studying the suitability of Alcatraz Island for the positioning of coastal batteries to protect the approaches to