The Red River of the South, main stem:
When it rains, Lake Texoma's red dirt river pours . . .

North Texas and Southern Oklahoma territory impressionist landscape art, Red River Valley

Iron-rich western-midwest region red-dirt clay and soils from the rolling plains, supporting and flowing along with north central texas prairie soil dirt, contribute to the reddish-brown Red River's rich metallic color as it runs eastward above Wichita Falls, Nocona, Gainesville, Woodbine, Callisburg, Denison, and Sherwood Shores, Texas. The Red River serves as a state line between Texas and Oklahoma, where Altus, Thackerville, Marietta, Willis and Kingston residents live north of the river.