The Sam Houston National Forest, one of four National Forests in Texas, is located 50 miles north of Houston. The forest is administered together with the other three United States National Forests and two National Grasslands located entirely in Texas, from common offices in Lufkin, Texas. The units include Angelina, Davy Crockett, Sabine, and Sam Houston National Forests, plus Caddo National Grassland and Lyndon B. Johnson National Grassland.