Bald Rock Maximum Security Prison is a SDR run and operated penitentiary located near the town of Bald Rock, Wyoming. The prison has been in use to detain superhumans and other superpowered individuals since its construction in 1957.
Bald Rock Prison is currently used to house captured or surrendered supervillains but during the Global Superhuman Coverup that lasted from 1950 to 2015 the prison was used to house any superhuman regardless of if they had committed a crime if the SDR was concerned they would threaten their coverup efforts.