The Sabine River forms the border of Texas with what other area?
Sabine River (Texas–Louisiana) Sabine River (Texas–Louisiana) The Sabine River () is a river, long, in the U.S. states of Texas and Louisiana. In its lower course, it forms part of the boundary between the two states and empties into Sabine Lake, an estuary of the Gulf of Mexico. Over the first half of the 19th century, the river formed part of the Spanish–American, Mexican–American, and Texan–American international boundaries. The upper reaches of the river flow through the prairie country of northeast Texas. Along much of its lower reaches, it flows through the pine forests along the Texas–Louisiana border, and the bayou country near
Sabine County, Texas Sabine County, Texas Sabine County is a county located on the central eastern border of the U.S. state of Texas. As of the 2010 census, its population was 10,834. Its county seat is Hemphill. The county was organized on December 14, 1837, and named for the Sabine River, which forms its eastern border. Sabine County is represented in the Texas House of Representatives by Republican Chris Paddie, a radio broadcaster and former mayor of Marshall in Harrison County. According to the U.S. Census Bureau, the county has a total area of , of which is land and (15%) is water.