Missouri IrmağıN.P. Dodge Park, Nebraska`ta Missouri]
| river_name = Missouri River
| image_name = Missouri river in Omaha, Nebraska.jpg
| caption = Missouri at N.P. Dodge Park, Omaha, Nebraska
| origin = Confluence of Madison, Gallatin and Jefferson in Montana.
| mouth = Mississippi River near St. Louis, Missouri
| length = 2,341 miles (3,767 km)
| elevation = 4,045 ft
| mouth_elevation = 400 ft
| discharge = Great Falls<ref> Sage Database for Great Falls</ref>: 292 ftÂ³/s<br /> Pierre<ref>U.S. Army Corps of Engineers, Oahe Dam discharge rate</ref>: 16000 ftÂ³/s<br />Sioux City: 36,830 ftÂ³/s<br />Omaha: 39,100 ftÂ³/s<br /> Kansas City: 56,950 ftÂ³/s<br /> Boonville: 69,220 ftÂ³/s<br /> Hermann: 87,950 ftÂ³/s<ref> Rising Flood Stages on the Lower Missouri River by Robert E. Criss - Washington University - St. Louis</ref>
| watershed = 529,300 square miles (1,376,180 kmÂ²)
--> <BR><BR><BR><BR><BR><BR><BR><BR> Missouri River ABD`deki Mississippi Nehri bir kolu. <!-- The Missouri River is a tributary of the Mississippi River in the United States. The Missouri begins at the confluence of the Madison, Jefferson, and Gallatin rivers in Montana, and flows into the Mississippi north of St. Louis, Missouri. At 2,341 mi (3,767 km)<ref> The Missouri River Story - USGS</ref> in length, it drains about one-sixth of the North American continent.
The Missouri in its original natural meandering state was the longest river in North America. Nearly 72 miles of the river have been cut off in channeling<ref> The Missouri River Story - USGS</ref> and so it is now comparable in length to the Mississippi River. The combination of the two longest rivers in North America forms the fourth longest river in the world.
At its confluence, the Missouri nearly doubles the volume of the Mississippi, accounting for 45 percent of the flow at St. Louis in normal times and as much as 70 percent of the flow during some droughts. <ref> River users object to Missouri River flow levels - Illinois Business Journal - February 16, 2004</ref>
It is the second-largest tributary by volume of the Mississippi, trailing only the Ohio.
The river is nicknamed "Big Muddy" and also "Dark River" because of the high silt content. The river meanders from bluff to bluff in the flat Midwestern states, leading to the nickname the "Wide Missouri". --> <!--
Overview--> 200px|thumb|left|Missouri River ve kolları <!-- The headwaters of the Missouri are in the Rocky Mountains of southwestern Montana, near the small town of Three Forks, rising in the Jefferson, Madison, and Gallatin rivers. The longest headwaters stream, and thus the Missouri`s hydrologic source, likely begins at Brower`s Spring, which flows to the Jefferson by way of several other named streams.<ref name=MToutdoors> The True Utmost Reaches of the Missouri - Montana Outdoors - July-August 2005</ref> From the confluence of its main tributaries near the city of Three Forks, the Missouri flows north through mountainous canyons, emerging from the mountains near Great Falls, where a large cataract historically marked the navigable limit of the river. It flows east across the plains of Montana into North Dakota, then turns southeast, flowing into South Dakota, and along the north and eastern edge of Nebraska, forming part of its border with South Dakota and all of its border with Iowa, flowing past Sioux City and Omaha. It forms the entire boundary between Nebraska and Missouri, and part of the boundary between Missouri and Kansas. At Kansas City, it turns generally eastward, flowing across Missouri where it joins the Mississippi just north of St. Louis.
The extensive system of tributaries drain nearly all the semi-arid northern Great Plains of the United States. A very small portion of southern Alberta, Canada and south-western Saskatchewan is also drained by the river through its tributary, the Milk. Another, separate area, in southern Saskatchewan is drained by another Missouri tributary, the Poplar River.
The river roughly follows the edge of the glaciation during the last ice age. Most of the river`s longer tributaries stretch away from this edge, with their origins towards the west, draining portions of the eastern Rockies. --> <!--
HeadwatersThe Missouri in name officially begins at Missouri Headwaters State Park at 4,045 feet in Montana at the confluence of the Jefferson River and Madison River. The Gallatin River joins the river about 0.6 of a mile downstream as it flows northeast. The Jefferson River originates in southwest Montana near the Continental Divide. The Madison and Gallatin Rivers flow out of northwest Wyoming to meet the Jefferson River.
Meriwether Lewis in his journal entry on July 28, 1805 wrote:
Both Capt. C. and myself corresponded in opinon with rispect(sic) to the impropriety of calling either of these  streams the Missouri and accordingly agreed to name them after the President of the United States and the Secretaries of the Treasury and state.
The Lewis and Clark decision not to call the Jefferson the Missouri has spurred debate over what is the longest river in North America since the Missouri and Mississippi are nearly identical in length. With the Jefferson the Missouri would be the longest river.
Lewis (who had followed the Jefferson River to the Beaverhead River) said that on August 12, 1805, he visited Beaverhead tributary of Trail Creek just above Lemhi Pass on the Continental Divide in the Beaverhead Mountains on the Montana and Idaho border at around 8,600 feet which he described:
the most distant fountain of the waters of the mighty Missouri in surch(sic) of which we have spent so many toilsome days and wristless(sic) nights.
However in 1888 Jacob V. Brower, who had championed turning the headwaters of the Mississippi River into a Minnesota state park, visited a site in Montana which today is believed to be the furthest point on the Missouri -- now called Brower`s Spring. Brower published his finding in 1896 in "The Missouri: It`s Utmost Source."
The site of Brower`s Spring at around 8,800 feet in the Centennial Mountains. The site now commemorated by a rock pile at the source of Hellroaring Creek which flows into Red Rock River and then into Clark Canyon Reservoir where it joins the Beaverhead then the Big Hole River before ultimately hooking up with the Jefferson.<ref name=MToutdoors/> --> <!--
MouthThe Missouri enters the Upper Mississippi River near its mile 195. The elevation is approximately 400 feet. The confluence is ringed by Camp Dubois which is now part of Lewis and Clark State Memorial Park in Illinois; Columbia Bottoms Conservation Area on the south bank of the Missouri in St. Louis and on the north bank of the Missouri by the Edward "Ted" and Pat Jones-Confluence Point State Park in West Alton, Missouri. --> <!--
History--> 200px|thumb|right|<!--High silt content makes the Missouri noticeably lighter than the Mississippi here at their confluence north of St. Louis.--> <!--
Jolliet and Marquette``Main articles: Louis Jolliet and Jacques Marquette``
The first Europeans to see the river were the French explorers Louis Jolliet and Jacques Marquette who shortly after looking at the Piasa petroglyph painting on the bluffs of Mississippi River above Alton, Illinois heard the Missouri rushing into the Mississippi.
While conversing about these monsters sailing quietly in clear and calm water, we heard the noise of a rapid into which we were about to run. I never saw anything more terrific, a tangle of entire trees from the mouth of the Pekistanoui with such impetuosity that one could not attempt to cross it without great danger. The commotion was such that the water was made muddy by it and could not clear itself.
Pekitanoui is a river of considerable size, coming from the northwest, from a great distance; and it discharges into the Mississippi. There are many villages of savages along this river, and I hope by this means to discover the Vermillion or California Sea.<ref> A History of Missouri from the Earliest Explorations and Settlements Until the Admission of the... By Louis Houck - 1908</ref><ref> Early Narratives of the Northwest By Louise Phelps Kellogg - 1917</ref>
Marquette and Joliet referred to the river as "Pekistanoui" and they made a reference to a tribe who lived upstream on the river as "``Oumessourita``" which was pronounced "``OO-Missouri``." <ref>McCafferty, Michael. 2004. `` Correction: Etymology of Missouri``. American Speech, 79.1:32</ref>), (meaning "those who have dugout canoes" <ref> American Heritage Dictionary: Missouri</ref>) This was the Illinois name for the Missouri whose village was nearly 200 miles upstream near Brunswick, Missouri.
Marquette wrote that natives had told him that it was just a six day canoe trip up the river (about 60 miles) where it would be possible to portage over to another river that would take people to California.
Jolliet and Marquette never explored the Missouri beyond its mouth. --> <!--
Bourgmont``Main articles: í‰tienne de Veniard, Sieur de Bourgmont and Fort Orleans``
The Missouri remained formally unexplored and uncharted until í‰tienne de Veniard, Sieur de Bourgmont wrote "Exact Description of Louisiana, of Its Harbors, Lands and Rivers, and Names of the Indian Tribes That Occupy It, and the Commerce and Advantages to Be Derived Therefrom for the Establishment of a Colony" in 1713 followed in 1714 by "The Route to Be Taken to Ascend the Missouri River." In the two documents Bourgmont was the first to use the name "Missouri" to refer to the river (and he was to name many of the tributaries along the river based on the Native American tribes that lived on them). The names and locations were to be used by cartographer Guillaume Delisle to create the first reasonably accurate map of the river.
Bourgmont himself was living with the Missouri tribe at its Brunswick village with his Missouri wife and son. He had been on the lam from French authorities since 1706 when he deserted his post as commandant of Fort Detroit after he was criticized by Antoine Laumet de La Mothe, sieur de Cadillac for his handling of an attack by the Ottawa in which a priest, a French sergeant and 30 Ottawa were killed. Bourgmont had further infuriated the French by illegally trapping and for immoral behavior when he showed up at French outposts with his Native American wife.
However after Bourgmont`s two documents, Jean-Baptiste Le Moyne, Sieur de Bienville, founder of Louisiana, said that rather than arresting Bourgmont they should make decorate him with Cross of St. Louis and name him "commandant of the Missouri" to represent France on the entire river. Bourgmont`s reputation was further enhanced when the Pawnee who had been befriended by Bourgmont massacred the Spanish Villasur expedition in 1720 near modern day Columbus, Nebraska which was to temporarily end Spanish designs on the Missouri River and clear the way for a New France empire stretching from Montreal, Canada to New Mexico.
After squabbling with French authorities over financing of a new fort on the Missouri and also suffering a yearlong illness, Bourgmont established Fort Orleans which was the first fort and first longer term European settlement of any kind on the Missouri in late 1723 near his home at Brunswick. In 1724 Bourgmont led an expedition to enlist Commanche support in the fight against the Spanish. In 1725 Bourgmont brought the chiefs of the Missouri River tribes to Paris to see the glory of France including the palaces of Versailles, and Fountainbleau and a hunting expedition on a royal preserve with Louis XV. Bourgmont was raised to rank of nobility remained in France and did not accompany the chiefs back to the New World. Fort Orleans was either abandoned or its small contingent massacred by Native Americans in 1726.
It is unclear how far up the Missouri Bourgmont traveled. He is the documented first European discoverer of the Platte River. In his writings he described the blonde-haired Mandans, so it is possible that he made it as far north as their villages in central North Dakota. --> <!--
MacKay and Evans``Main article: MacKay and Evans Expedition``
The Spanish took over the Missouri River in the Treaty of Paris that ended the French and Indian War/Seven Years War. The Spanish claim to the Missouri was based on Hernando de Soto "discovery" of the Mississippi River on May 8, 1541. The Spanish initially did not extensively explore the river and were to let French fur traders continue their activities although under license.
After the British began to exert influence on the Upper Missouri River via the Hudson Bay Company, news of the English incursions came following an expedition by Jacques D`Eglise in 1790. The Spanish chartered the "Company of Discoverers and Explorers of the Missouri" (popularly referred to as the "Missouri Company") and offered a reward for the first person to reach the Pacific via the Missouri. In 1794 and 1795 expeditions led by Jean Baptiste Truteau and Antoine Simon Lecuyer de la JonchÅ¡re did not even make it as far north as the Mandan villages in central North Dakota.<ref> Gathering Intelligence - Greatriverroad.com</ref>
The most significant expedition though was the MacKay and Evans Expedition of 1795-1797. James MacKay and John Evans were hired by the Spanish to tell the British to leave the upper Missouri and to search a route to the Pacific Ocean.<ref> PROLOGUE TO LEWIS AND CLARK: The Mackay and Evans Expedition - Montana: The Magazine of Western History, Spring 2004</ref>
McKay and Evans established a winter camp about 20 miles south of Sioux City, Iowa on the Nebraska side where they built Fort Columbus. Evans went on to th Mandan village where he expelled out British traders. While talking to Native Americans they were to pinpoint the Yellowstone River (which they called "Yellow Rock").
They were to create a detailed map of the upper Missouri that was to be used by Lewis and Clark. --> <!--
Lewis and Clark``Main articles: Louisiana Purchase and Lewis and Clark ``
On October 27, 1795, the United States and Spain signed Pinckney`s Treaty giving American merchants the "right of deposit" in New Orleans, meaning they could use the port to store goods for export. The treaty also recognized American rights to navigate the entire Mississippi River.
In 1798 Spain revoked the treaty.
On October 1, 1800, the Spanish secretly returned Louisiana to the French under Napoleon in the Third Treaty of San Ildefonso. The transfer was so secret that the Spanish continued to administer the territory but in 1801 they restored the United States rights to use the river and New Orleans.
Thomas Jefferson fearing the cutoffs could occur again sought to negotiate with France to buy New Orleans for the asking price of $10 million. Napoleon came back with a counter offer of $15 million for all of the Louisiana Territory including the Missouri River. The deal was signed on May 2, 1803.
On June 20, 1803, Thomas Jefferson instructed Meriwether Lewis <ref name="meriwetherinstr">cite web | title = Jefferson`s Instructions for Meriwether Lewis | url = http://www.loc.gov/exhibits/lewisandclark/lewis-landc.html#57 | accessdate = 2006-06-30</ref> to explore the Missouri and look for a water route to the Pacific.
Although the deal was signed, Spain still balked at an American takeover citing first that France had never formally taken over the Louisiana Territory. Spain was to formally tell Lewis not take the journey and expressly forbade Lewis from seeing the McKay and Evans map which was the most detailed and accurate of its time. Lewis was to gain access to it surreptitiously. To avoid jurisdictionally issues with Spain they wintered in 1803-1804 at Camp Dubois on the Illinois (United States) side of the Mississippi.
Lewis and William Clark left on May 14, 1804 and returned to St. Louis on September 23, 1806. --> <!--
American Frontier--> thumb|right|<!--Karl Bodmer "Fort Pierre and the Adjacent Prairie", c. 1833--> <!-- The river defined the American frontier in the 19th century, particularly upstream from Kansas City, Missouri, where it takes a sharp eastern turn into the heart of the the state of Missouri.
All of the major trails for the opening of the American West have their starting points on the river, including the California, Mormon, Oregon, and Santa Fe trails. The first westward leg of the Pony Express was a ferry ride across the Missouri at St. Joseph, Missouri. The first westward leg of the First Transcontinental Railroad was a ferry ride across the Missouri between Council Bluffs, Iowa and Omaha, Nebraska.
The Hannibal Bridge was the first bridge to cross the river when it opened in Kansas City in 1869, and was a major reason why Kansas City became the largest city on the river upstream from its mouth at St. Louis.
Extensive use of paddle steamers on the upper river helped facilitate European settlement of the Dakotas and Montana.
The Department of the Missouri, which was headquartered on the banks of the river at Fort Leavenworth, Kansas, was the military command center for the Indian Wars in the region.
The northernmost navigable point on the Missouri before extensive navigation improvements was Fort Benton, Montana, at approximately 2,620 feet.<ref> Topozone Map</ref> --> <!--
River modifications--> 200px|thumb|left|<!--Fort Randall Dam on the Missouri River in South Dakota--> <!-- Since the lower river meanders through a broad floodplain in Midwestern states, it has often changed course and in its wake left numerous oxbow lakes (Big Lake is the largest such lake in Missouri). In the early 1800s the United States Supreme Court (which decides state border disputes) ruled that when the river changed course the border also changed (as happened with the Fairfax District at Kansas City, Kansas which switched from Missouri to Kansas.) However, in the late 1800s the Court began ruling on absolute boundaries, creating geographic oddities such as Carter Lake, Iowa, which is now a piece of Iowa on the west side of the Missouri between downtown Omaha and Eppley Airfield, and the French Bottoms in St. Joseph, Missouri, a piece of Missouri on the west of the river, requiring Missouri residents to go through Kansas in order to reach Rosecrans Airport.
In the 20th century, the upper Missouri was extensively dammed for flood control, irrigation, and hydroelectric power. After President Franklin D. Roosevelt signed the Flood Control Act of 1944, the Pick-Sloan Plan turned the Missouri River into the largest reservoir system in North America. There are six dams in four states: Fort Peck Dam in Montana; Garrison Dam in North Dakota; Oahe Dam, Big Bend Dam, and Fort Randall Dam in South Dakota; and Gavins Point Dam on the South Dakota-Nebraska border.
These dams were constructed without lock, so commercial navigation on the Missouri cannot proceed above the Gavins Point Dam. The Corps of Engineers maintains a 9-foot-deep (3-meter-deep) navigation channel for 735 miles (1183 km) between Sioux City, Iowa and St. Louis in non-winter months. The dams aid navigation on the lower river by reducing fluctuations in water levels.
Thirty-five percent of the Missouri River is impounded, 32 percent has been channelized, and 33 percent is unchannelized.<ref> The Missouri River Story - USGS</ref>
The only significant stretch of free-flowing stream on the lower Missouri is the Missouri National Recreational River section between Gavins Point Dam and Ponca State Park, Nebraska. This federally-designated "Wild and Scenic River" is among the last unspoiled stretches of the Missouri, and exhibits the islands, bars, chutes and snags that once characterized the "Mighty Mo".
The dikes, revetments, and levees constructed by the Corps of Engineers as part of the Missouri River Navigation and Flood Control Project have transformed the once sprawling and constantly changing river into a narrower, deeper, fixed channel designed to naturally maintain a 735- mile long, 9-foot deep navigation channel. The water velocity in the navigation channel carries a large amount of silt and sand but doesn`t normally allow it to settle out and accumulate in sand bars. As a result, unlike the Mississippi River, the Missouri River rarely requires dredging to maintain the navigation channel. The huge amounts of sediment in the Big Muddy have long provided a free source of sand mined by commercial dredgers to be used in concrete and asphalt for construction, mainly below Rulo, Nebraska. In recent years, however, the quantity of sand commercially dredged from the Missouri River has dramatically increased as Kansas City, Columbia, and St. Louis, Missouri have grown. In 2000, 7.4 million tons of sand and gravel were dredged out of the navigation channel of the river.<ref> Past and Future Grain Traffic on the Missouri River by C. Philip Baumel and Jerry Van Der Kamp - Agri-Industries.Com</ref>. As commercial sand dredging has increased, the Missouri River bed has gradually cut deeper into the flood plain. Between 1990 and 2005 the river around Kansas City, Missouri has degraded as much as 4.5 feet.
Barge traffic has been steadily declining from 3.3 million tons in 1977 to 1.3 million tons in 2000.<ref> Past and Future Grain Traffic on the Missouri River by C. Philip Baumel and Jerry Van Der Kamp - Agri-Industries.Com</ref> The declining barge traffic industry has stirred controversies over the management of the river and whether upstream dams should release the water to maintain commercial navigation standards.
The states of Iowa and Missouri have sought to revive their waterfronts by permitting riverboat gambling. The initial gambling regulations required the casinos to navigate the river. They were subsequently amended so that the casinos could be permanent land-based structures as long as they had a moat with Missouri River water surrounding them. --> <!--
Popular depictions--> thumb|<!--George Caleb Bingham "Fur Traders on Missouri River", c. 1845.--> <!-- The American painter George Catlin traveled up the Missouri in the 1830s, making portraits of individuals and tribes of Native Americans. He also painted several Missouri River landscapes, notably " Floyd`s Bluff" and " Brick Kilns", both from 1832.
The Swiss painter Karl Bodmer accompanied German explorer Prince Maximilian zu Wied-Neuwied from 1832 through 1834 on his Missouri River expedition. Bodmer was hired as an artist by Maximilian for the purpose of recording images of the Native American tribes that they encountered in the American West.
In 1843, the American painter and naturalist John James Audubon traveled west to the upper Missouri River and the Dakota Territory to do fieldwork for his final major opus, ``Viviparous Quadrupeds of North America``. A typical example from this folio is "American Bison".
Missouri painter George Caleb Bingham immortalized the fur traders and flatboatmen who plied the Missouri River in the early 1800s; these same boatmen were known for their river chanties, including the haunting American folk song "Oh Shenandoah". Each verse of "Oh Shenandoah" ends with the line, "...`cross the wide Missouri."
The river is notable for being the setting of the Pete Seeger song Waist Deep in the Big Muddy. (There is some ambiguity as to location. Seeger also sings that the action took place in "Loo-siana".) The song is set in 1942, during training for World War II, but its image of a foolish captain who pushes his men further and further into a hopeless situation was clearly meant to parallel the Vietnam War. In the song, a Captain leading a squad on training maneuvers insists on crossing the titular river, insisting that it is safe to cross. The Captain sinks into the mud, drowns, and his squad turns back, led by the Sergeant who had questioned the Captain`s orders. --> <!--
Major tributariesThe following rivers are listed going downstream based on the states where they enter the Missouri. --> <!--
Montanathumb|right|250px| River, a tributary of the Jefferson River and a headwater of the Missouri] thumb|right|250px|Missouri River near Abraham Lincoln State Park south of ] ] thumb|250px|right|The Missouri as seen from southeast Nebraska thumb|250px|right|Bluffs above the Grand River in Missouri
- Jefferson River
- Madison River
- Gallatin River
- Sixteen Mile Creek
- Dearborn River
- Smith River
- Sun River
- Belt Creek
- Marias River
- Arrow Creek
- Judith River
- Cow Creek
- Musselshell River
- Milk River
- Redwater River
- Poplar River
- Big Muddy Creek
- Yellowstone River
- Little Muddy Creek
- Tobacco Garden Creek
- Little Missouri River
- Knife River
- Heart River
- Cannonball River
- Big Sioux River (tri-state border)
- Perry Creek (Iowa)
- Floyd River (Iowa)
- Little Sioux River (Iowa)
- Soldier River (Iowa)
- Boyer River (Iowa)
- Mosquito Creek (Iowa)
- Platte River (Nebraska)
- Little Nemaha River (Nebraska)
- Big Nemaha River (Nebraska)
- Nishnabotna River (Missouri)
Major cities along the riverFor a full list, see List of cities and towns along the Missouri River
Although the Missouri drains one-sixth of North America, its basin is relatively lightly populated with only 10 million people.<ref> The Missouri River Story - USGS</ref>
- Great Falls, Montana
- Bismarck, North Dakota (capital)
- Pierre, South Dakota (capital)
- Sioux City, Iowa
- Council Bluffs, Iowa
- Omaha, Nebraska
- Saint Joseph, Missouri
- Kansas City, Kansas
- Kansas City, Missouri
- Jefferson City, Missouri (capital)
- Saint Charles, Missouri
- St. Louis, Missouri
- List of crossings of the Missouri River
- Geography of the United States
- Across the Wide Missouri
- Pick-Sloan Legislation
- Roe River and D River, for the ``shortest`` river counterpart
- Flood of 1993
References<div class="references-small"><references /></div> --> <!--
External linksCommonscat|Missouri River Mississippi River)|38.8142|-90.1205|(Three Forks, Montana)|45.9278|-111.5058 -->