Title: Brazos River
Content:  The Brazos proper begins at the confluence of the Salt Fork and Double Mountain Fork, two tributaries of the Upper Brazos that rise on the high plains of the Llano Estacado, flowing 840 mi southeast through the center of Texas. Another major tributary of the Upper Brazos is the Clear Fork Brazos River, which passes by Abilene and joins the main river near Graham. Important tributaries of the Lower Brazos include the Paluxy River, the Bosque River, the Little River, Yegua Creek, the Nolan River, the Leon River, the San Gabriel River, the Lampasas River, and the Navasota River. Initially running east towards Dallas-Fort Worth, the Brazos turns south, passing through Waco and the Baylor University campus, further south to near Calvert, Texas, then past Bryan and College Station, then through Richmond, Texas, in Fort Bend County, and empties into the Gulf 
Title: Rio Brazos (New Mexico)
Content:  The Rio Brazos is a 42 mi long river flowing through northern New Mexico in the United States. It rises in the Tusas Mountains, a subrange of the San Juan Mountains, and runs generally southwest to a confluence with the Rio Chama, part of the larger Rio Grande system. The river is formed by two streams, the 8.74 mi West Fork and the 8.44 mi East Fork, which converge at Brazos Meadows, just outside the western boundary of the Carson National Forest. For its first few miles, it flows south as a slow-moving, meandering mountain stream. East of Brazos Peak, it swings abruptly west into the Brazos Box, one of the largest canyons in New 
Title: Brazos River
Content:  The Brazos River, called the Río de los Brazos de Dios (translated as "The River of the Arms of God") by early Spanish explorers, is the 11th-longest river in the United States at 2060 km from its headwater source at the head of Blackwater Draw, Roosevelt County, New Mexico to its mouth at the Gulf of Mexico with a 116,000 km2 drainage basin. Being one of Texas' largest rivers, it is sometimes used to mark the boundary between East Texas and West Texas. The river is closely associated with Texas history, particularly the Austin settlement and Texas Revolution eras. Today major Texas institutions such as Texas Tech University, Baylor University, and Texas A&M University are located close to the river's basin, as are parts of metropolitan Houston.
Title: Rio Brazos (New Mexico)
Content:  the river's length provides good fishing for brown and rainbow trout, especially the upper section which is one of the largest high-meadow streams in New Mexico, most of the drainage is private property making it largely inaccessible for recreation. Although most of the Brazos flows through wild lands, the river is heavily used for irrigation in the last 5 mi, with multiple acequias (irrigation ditches) drawing off water. As a result, this section of the river often shrinks to a trickle during the dry season. The U.S. Environmental Protection Agency lists the water quality for the last 3.52 mi of the river as "impaired", owing mainly to agricultural runoff and heavy summer water diversions.
Title: Clear Fork Brazos River
Content:  The Clear Fork Brazos River is the longest tributary of the Brazos River of Texas. It originates as a dry channel or draw in Scurry County about 2 mi northeast of Hermleigh and runs for about 180 mi through portions of Scurry, Fisher, Jones, Shackelford, and Throckmorton counties before joining the main stem of the Brazos River in Young County about 7.8 mi south-southeast of Graham, Texas. A tributary of the Clear Fork Brazos River is Paint Creek, which is dammed to form Lake Stamford.
Title: Port of Freeport
Content:  A report from the U.S. Army, describes "''the Brazos River as one of the principal rivers in Texas. Its length is about 800 miles, and its watershed embraces about 36,000 square miles." "Unlike any other Texas river, the Brazos flows directly into the Gulf of Mexico without the intervention of a bay."'' In the late 19th century, work began in a set of jetties but did not get completed until 1900 as the project switched from federal sponsor to private and back to federal.
Title: Brazos River Authority
Content:  The Brazos River Authority or BRA was created in 1929 by the Texas Legislature as a quasi-governmental entity to manage the Brazos River as a water resource in Texas. It was originally named the Brazos River Conservation and Reclamation District and renamed to the current name in 1953. The central office is located at 4600 Cobbs Drive in Waco. 
Title: Rio Brazos (New Mexico)
Content:  with a maximum depth of more than 1400 ft. Here, it passes the Brazos Cliffs, receives Gavilan and Encinado Creeks, and picks up an unnamed tributary which feeds Brazos Falls, reputedly New Mexico's highest waterfall with a total drop of 2400 ft. Northeast of Tierra Amarilla, the river emerges from the mountains, receiving Chavez Creek from the right. It passes the settlements of Ensenada, Brazos and Los Ojos before flowing into the Rio Chama about 90 mi northwest of Santa Fe. The Brazos is a perennial stream, reaching its highest flows in April and early May from snowmelt in the mountains, and is subject to occasional flash floods caused by summer thunderstorms. Although most 
Title: Brazos, New Mexico
Content:  Brazos is located at 36.7514°N, -106.56142°W. According to the U.S. Census Bureau, the community has an area of 0.217 mi2, all land.
Title: Brazos, New Mexico
Content:  Brazos is an unincorporated community and census-designated place in Rio Arriba County, New Mexico, United States. Its population was 44 as of the 2010 census. U.S. Route 64 passes through the community. See Los Brazos Historic District.

Question: where does the brazos river start and stop?
Answer: Gulf of Mexico.
Llano Estacado.