Here at the Brazos River, ever wondered how this waterway got its intriguing name? The Brazos River, the longest river flowing entirely within Texas, stretches 700 miles. Its watershed begins 50 miles west of the Texas-New Mexico state line. This vast watershed covers 45,510 square miles, with 94% in Texas and 6% in New Mexico.
The Brazos River proper starts where the Salt and Double Mountain Forks meet in Stonewall County. The Clear Fork joins it just above Possum Kingdom Lake. Ultimately, the Brazos empties into the Gulf of America, two miles south of Freeport.
Interestingly, the Brazos crosses diverse Texas landscapes. These include the High Plains, Blackland Prairie, Edwards Plateau, and Gulf Coast Prairies and Marshes. This creates varied scenery from canyons to rolling hills and beaches. The river descends at a rate of three feet to one-half foot per mile as it flows 938 miles to the Gulf.
Besides the Salt Fork and Double Mountain Fork, there are five main tributaries. These are the Clear Fork, Yegua Creek, and the Bosque, Little, and Navasota rivers. Within these, fifteen subtributaries exist including the Leon River. Major cities in the Brazos River basin include Lubbock, Waco, and Galveston. Even Dallas-Fort Worth and Houston are near the watershed boundaries.
The climate here varies greatly from temperate to subtropical. The average temperature ranges from 59 degrees in the upper parts to 71 degrees near the coast. Rainfall differs too. The northwest gets about 15 inches annually, while the southeast receives up to 50 inches.
The soil along the Brazos River basin ranges from sandy loams to deep clay. Natural vegetation adapts from grasses in drier areas to hardwoods in wetter zones. Farming and ranching are common. Cotton, cattle, and oil have historically been the main products.
The Brazos is likely the river the Caddoan Indians called Tokonohono. Early explorers often confused the Colorado and Brazos rivers. The name Brazos de Dios means the arms of God. Legends say it was named so because it was often the first source of drinkable water found by people in desperate need.
The first permanent settlement on the Brazos River was San Felipe de Austin. John McFarland founded it and it became the colonial capital of Texas. The Brazos River at Velasco saw the first colonial resistance to Mexican rule. Columbia and Washington-on-the-Brazos served as early seats of government for the Republic of Texas.
Texans prioritized navigating the Brazos to boost trade. However, alternating droughts and floods made this hard. In the early 1900s, the US Army Corps of Engineers began building locks for navigation up to Waco. A major flood destroyed much of this work and the Corps abandoned the project.
The original mouth of the Brazos River was near Quintana. Shifting sandbars posed a hazard to ships. In 1929, the US Army Corps of Engineers diverted the river’s mouth into the Gulf Intracoastal Waterway.
Today, the Brazos River remains a vital resource. The Brazos River Authority manages the river basin. It supplies water for power, irrigation, and recreation. Dams have created reservoirs like Possum Kingdom Lake and Lake Whitney for flood control and water storage. The Brazos River continues to shape the landscape and lives of Texans.