Website:
http://www.tpwd.state.tx.us/spdest/findadest/parks/big_bend_ranch/ (Website)

Description:
"Big Bend Ranch State Park is a 311,000-acre (126,000 ha) state park located on the Rio Grande in Brewster and Presidio counties, Texas. It is the largest state park in Texas. The closest major towns are Lajitas and Presidio, where the state park's visitor center and head office are located respectively. Big Bend Ranch State Park is located adjacent to Big Bend National Park and shares the national park's Chihuahuan Desert ecosystem. However, in one significant aspect the state park is managed very differently from the nearby national park, as the state park encompasses a network of cattle ranches operated according to the principle of the open range. A herd of longhorn cattle is based here. The Big Bend Ranch State Park manages 23 miles of frontage along the Rio Grande River and river rafting is popular here. Away from the river, visitors can hike, backpack, go horseback riding or enjoy mountain biking in the Big Bend Ranch State Parks' substantial back country. "