Located just over an hour from Tyler, the H.H. Coffield Unit in Tennessee Colony is the largest prison in Texas, housing thousands of inmates and employing hundreds on-site.
Also, according to the TDCJ, various agricultural endeavors take place at the prison, including "Feed mill and Grain Storage, Farm Shop, Cow/Calf Operation, Poultry Laying Operation, Swine Farrowing/ Nursery/Finishing Operations, Pork Processing Plant, Security Horses, Security Pack Canines, Edible and Field Crops, and Unit Garden."