The New International Encyclopædia…
“ The extreme northern part of the State belongs to the Mississippi Basin. The Canadian River crosses the Panhandle to join the Arkansas, while the Red River rises on the escarpment of the Llano Estacado and forms for a long distance part of the northern State boundary. The independent rivers flow directly to the Gulf of Mexico, and all, except the Brazos and Rio Grande, empty through estuaries into the coast lagoons. The principal rivers are the Sabine, on the Louisiana boundary, the Neches, Trinity, Brazos, Colorado, Guadalupe, San Antonio, Nueces, and the Rio Grande. ”
