Tags: Prison.
O. B. Ellis Unit (E1 previously Ellis I Unit) is a Texas Department of Criminal Justice prison located in unincorporated Walker County Texas 12 miles (19 km) north of Huntsville. The unit with about 11427 acres (4624 ha) of space now houses up to 2400 male prisoners. Ellis is situated in a wooded area shared with the Estelle Unit which is located 3 miles (4.8 km) away from Ellis.