Workers install a permanent Alligator Alcatraz sign at the new state immigration detention facilty in the Everglades. PHOTO BY AL DIAZ adiaz@miamiherald.com, In this photo provided by Jessica Namath, a man takes a photo of a new roadside sign labeled “Alligator Alcatraz” near a new immigration detention facility in the Florida Everglades, in , Workers installed a sign reading "Alligator Alcatraz" at the entrance of a new migrant detention facility in Collier County in Florida on Thursday., Workers installed a sign reading "Alligator Alcatraz" at the entrance of a new migrant detention facility in Collier County in Florida on Thursday. AP video by Rebecca Blackwell., Florida begins building ‘Alligator Alcatraz’ migrant detention center in the Everglades, Despite resistance, Florida officials are turning an airfield in the Everglades into a migrant detention center, which they've nicknamed "Alligator Alcatraz" due to its proximity to the.