The claim: Federal Penitentiary and satellite prison camp inside Crab Orchard Nat'l Wildlife Refuge. Manned, staffed, populated fully.
What it really is: With the exception of the facility being located in Crab Orchard National Wildlife Refuge, everything else is technically true.
The actual facility is called the United States Penitentiary, Marion, and it actually use to be maximum security prison that was built replace Alcatraz, and houses and housed multiple famous and high profile criminals, including Clement Rodney Hampton-El, Zachary Chesser, John Gotti, Viktor Bout, Tony Alamo, and even Pete Rose.
The site itself is now a medium security prison, with a minimum security prison camp. The prison holds over 1,000 inmates, with 350 people in the prison camp.