Stronghold prison is located in the Rocky mountains of Colorado and was specifically designed to incarcerate enhanced villains whom conventional jails could not hold. Prior to its creation, metahuman criminals were sent to ordinary prisons, from which they usually escaped in a matter of months.

Because it was designed for containment , only a small part o of the facility is devoted to research and that is limited to examination of prisoners so that appropriate containment systems can be created. The prisons administrators investigated the feasibility of permanently neutralizing criminals powers, but that option has thus far been ruled unconstitutional.