I always thought a no wall prison in the middle of Alaska would be good. Wanna run...there is the tundra!
Robert Heinlein wrote a story called “Coventry”, in which ne’er-do-wells were put in a prison that only had an impenetrable outer wall - nothing else. The concept was that if a person could not live nicely with the rest of society, they would be banned from society and forced to live among others of their kind. Three options come to mind for the US: (1) The Federal government buys Catalina Island, and uses the Coast Guard to prevent any boat or aircraft from getting near. (2) We buy/lease an island off the coast of British Columbia; same patrol force. (3) Stake out a section of land just south of Lordsburg, NM, and equip it with tents, water tanks, and air-dropped food; U.S. Marshall Service and rotational national guard anti-aircraft battalions to provide security.
In all three options, there would be a semi-annual government visit to deposit more prisoners and remove the survivors who had served their time.