High Quality Content by WIKIPEDIA articles! The Christina Melton Crain Unit (formerly the Gatesville Unit) is a Texas Department of Criminal Justice prison for females in Gatesville, Texas. The prison is along Texas State Highway 36, 3 miles (4.8 km) north of central Gatesville. The unit, with about 1,317 square feet (122.4 m2) of space, is co-located with the Hilltop Unit, the Dr. Lane Murray Unit, and the Linda Woodman Unit. The unit`s regular program houses around 1,500 women, and it is one of Texas`s main prisons for women. Female prison offenders of the TDCJ are released from this unit. With a capacity of 2,013 inmates, Crain is the TDCJ`s largest female prison.