Rivière Rouge (former French name),Río Colorado (former Spanish name)
Red River looking east, north ofBonham, Texas:Texas is to the right, Oklahoma is on the left, and the border between the two states runs along the south (right) bank of the river.
The Red River basin is the second-largest in the southernGreat Plains.[5] It rises in two branches in theTexas panhandle and flows eastward, serving as a border between the states ofTexas andOklahoma. It forms a short border between Texas andArkansas before entering Arkansas. It forms much of the eastern border ofMiller County, Arkansas, turning south nearFulton and flowing intoLouisiana, where it feeds the Atchafalaya River. The total length of the river is 1,360 miles (2,190 km), with a mean flow of over 57,000 cubic feet per second (1,600 m3/s) at the mouth.[citation needed]
Specialists have debated whether theNorth Fork or thePrairie Dog Town Fork is the true stem.[5] In 1852,Randolph B. Marcy's expedition had followed the Prairie Dog Town Fork.[5] Because of acartographic error, the land between the north and south forks was claimed by both the state of Texas and theUnited States federal government. Originally calledGreer County, Texas, theUS Supreme Court ruled that it belonged to the United States, which at the time oversaw theOklahoma Territory. That territory was later incorporated into the state ofOklahoma, whose southern border follows the south fork. Today, the southern Prairie Dog Town Fork is considered the main fork, though the North Fork is as long and normally has a greater water flow.[5]
Soon after, the waterway crosses south intoLouisiana. The sister cities ofShreveport andBossier City were developed on either bank of the river, as were the downriver cities ofAlexandria andPineville. After being joined from the north by theBlack River (downstream name of theOuachita River, its largest tributary) about 1.5 miles south ofAcme, the river broadens into a complex network of marshlands west of the Mississippi River. Its waters eventually become atributary of theAtchafalaya River[7] and flow generally southward into theGulf of Mexico.
The Red River is salty through tributaries aboveLake Texoma. The saltiness is caused byPermian salt deposits – mostly sodium chloride. Deposition eventually buried the deposits, but the salt continues to leach through natural seeps in tributaries above Lake Texoma, sending as much as 3,450 tons of salt per day flowing down the Red River.[8][9]
The Red River's watershed covers 65,590 square miles (169,900 km2)[5] and is the southernmost major river system in theGreat Plains. Its drainage basin is mostly in the states of Texas and Oklahoma, but also covers parts of New Mexico, Arkansas and Louisiana. Its basin is characterized by flat, fertileagricultural land, with only a few major cities. The drainage basin of the Red River is very arid and receives littleprecipitation. As a result, much of the river above the Texas–Oklahoma border is intermittent, and the flow varies widely until the river is beyond its great bend south in Arkansas. Most of the agriculture in the basin is sustained bygroundwater, which is recharged with rainfall and river flow. The lower course of the river flows through a series ofmarshes andswamps, which dramatically moderate its flow.[citation needed] The Red River is said to have once carried five times the sediment load of the Mississippi.[10]
Native American cultures along the river were diverse, developing specialized adaptations to the many different environments.[5] Starting near the headwaters, the Plains division of theLipan Apache dominated the western Red River area until the 18th century, when they were displaced by invadingComanche from the north.[5] The middle part of the Red River was dominated by theWichita andTonkawa. This area wasprairie, where Native Americans constructed portable and temporarytepees for housing. They practiced limited farming and followed game in seasonal,nomadic hunting cycles.[5] By the time ofEuropean contact, the easternPiney Woods of the lower river courses were dominated by the numerous historic tribes of theCaddo Confederacy. They found plentiful game and fish, and also had good land for cultivating staple crops.[5]
In 1806, LieutenantZebulon Pike, under orders to ascertain the source of the Red River, ascended theArkansas River, made his way downstream on what turned out to be theRio Grande, and was sent home by the Spanish authorities. A more successful exploration of the river's upper reaches to both its sources came with the 1852 expedition under Capt.Randolph Barnes Marcy, assisted by Brevet Capt.George B. McClellan.[12] A decade later McClellan became an important general in theAmerican Civil War.
In April 1815, Captain Henry Miller Shreve was the first person to bring a steamboat, theEnterprise, up the Red River. Fulton and Livingston, who claimed the exclusive right to navigate Louisiana waters by steamboat, sued Shreve in the District Court of New Orleans. The judge ruled that the monopoly claimed by the plaintiffs was illegal. That decision, along with a similar outcome inGibbons v. Ogden, freed navigation on every river, lake or harbor in the United States from interference by monopolies.[13]
WhenJohn Quincy Adams becameSecretary of State in 1817, one of his highest priorities was to settle with Spain the boundaries of the Louisiana Purchase. He negotiated withLuis de Onís, the Spanish Minister to the United States, and finally concluded theAdams–Onis Treaty, also known as the Treaty of 1819. The treaty defined the south bank of the river as the boundary between the United States and Spain, as of when it was surveyed and demarcated following 1819. That boundary continued to be recognized whenMexico gained its independence from Spain in 1821, and ongoingly whenTexas became independent fromMexico in 1835–1836. It remained the official boundary[13] until the United States Congress consented in October 2000 to the Red River Boundary Compact, which had been adopted in 1999 by the states of Oklahoma and Texas[1]. This set the jurisdictional boundary between these states at the vegetation line on the south bank, leaving title of adjacent property owners at the south bank. (The Red River actively meanders, as shown by comparing current maps of the political boundaries with those defined by the river's course decades ago.)
In the early 19th century, settlers found that much of the river's length inLouisiana was unnavigable because of a collection of fallen trees that formed aGreat Raft over 160 miles (260 km) long. In 1839, CaptainHenry Miller Shreve began clearing the log jam, but it was not completely cleared until the 1870s, whendynamite became available. The river was thereafter navigable, although north ofNatchitoches it was restricted to small craft. Removal of the raft further connected the Red andAtchafalaya rivers, accelerating the development of the Atchafalaya River channel.[7]
TheRed River Bridge War of 1931 was a boundary conflict betweenOklahoma andTexas over an existing toll bridge and a new free bridge crossing the Red River. A joint project to build a free bridge betweenDurant, Oklahoma andDenison, Texas turned into a major dispute when theGovernor of Texas blocked traffic from entering his state on the new bridge. The Red River Bridge Company of Texas owned the original toll bridge and had a dispute over its purchase deal. Oklahoma GovernorWilliam H. Murray sent the Oklahoma National Guard to reopen the bridge that July. Texas had to retreat when lawyers determined that Oklahoma had jurisdiction over both banks of the river.[14]
In June 2015, theRed River flooded parts of northeast Texas, southwest Arkansas, southeast Oklahoma and Louisiana, fromDenison Dam, to just south ofAlexandria, Louisiana.[15] The river reached its highest level in over 70 years, cresting in most of the affected areas at around 6–9 feet over the flood levels.[16] At 4 PM on June 9, the river reached its maximum height of 37.14 feet.[17]
^According to the USGS. Previous versions of this article (source unclear) claim the stretch downstream of Buck Creek as a continuation of the Prairie Dog Town Fork, with the Red River beginning atSalt Fork.
^Meredith, Howard."Caddo (Kadohadacho)". Encyclopedia of Oklahoma History and Culture. Oklahoma Historical Society.Caddo.Archived from the original on 2023-03-24. Retrieved2025-08-03.
^ab"Red River"(Feature Details for ID 558278).U.S. Geological Survey. 31 Dec 1981.
^Tyson, Carl N.The Red River in Southwestern History. Norman: University of Oklahoma Press, 1981.ISBN0-8061-1659-5
^"Red River Basin". Texas Water Development Board.Archived from the original on 16 October 2020. Retrieved5 Dec 2020.
^Jefferson to Dunbar, 25 May 1805, quoted in T. Lindsay Baker, ed.,The Texas Red River country: the official surveys of the headwaters, 1876, 1998: "Foreword", v, and in D.L. Flores, "The Ecology of the Red River in 1806: Peter Custis and Early",The Southwestern Historical Quarterly88,.1, (July 1984).