Title: Steamboats of the Mississippi
Content:  The Mississippi is one of the world's great rivers. It spans 3860 mi of length as measured using its northernmost west fork, the Missouri River, starting in the Rocky Mountains in Montana, joining the Mississippi proper in the state of Missouri. The Ohio River and Tennessee River are other tributaries on its east, and the Arkansas, Platte, and Red River of Texas come from the west. The Mississippi itself starts at Lake Itasca in Minnesota, and the river proceeds through the center of the country, forming parts of the boundaries of ten states, dividing east and west, and furthering trade and culture in those regions and beyond.
Title: Mississippi River in the American Civil War
Content:  The Mississippi was an important military highway that bordered ten states, roughly equally divided between Union and Confederate loyalties. Both sides soon realised that control of the river was a crucial strategic priority. In April 1862, the Union secured two key points, New Orleans at the mouth of the river and a double-bend on the Kentucky-Tennessee line, leaving only the middle section in Confederate hands. When the major river-ports of Memphis and Vicksburg fell (followed automatically by Port Hudson), the liberation of the Mississippi was complete, and Lincoln declared "The Father of Waters again goes unvexed to the sea." This split the Confederacy in two, with the western half forced to operate as a separate department, the Trans-Mississippi Theater, greatly inhibiting supplies and communications, and tilting the odds decisively in favour of the Union.
Title: Mississippi River
Content:  The Mississippi River is known as the Middle Mississippi from the Upper Mississippi River's confluence with the Missouri River at St. Louis, Missouri, for 190 mi to its confluence with the Ohio River at Cairo, Illinois. The Middle Mississippi is relatively free-flowing. From St. Louis to the Ohio River confluence, the Middle Mississippi falls 220 ft over 180 mi for an average rate of 1.2 ft/mi. At its confluence with the Ohio River, the Middle Mississippi is 315 ft above sea level. Apart from the Missouri and Meramec rivers of Missouri and the Kaskaskia River of Illinois, no major tributaries enter the Middle Mississippi River.
Title: Mississippi National River and Recreation Area
Content: 1) The Wild and Scenic River (River Mile 879 to 863) — North of the Twin Cities the river is a state wild and scenic river, slowing as it reaches the Coon Rapids Dam. This segment begins at the confluence of Crow River and the Mississippi near Ramsey and Dayton and flows to Banfil Island at Brooklyn Park and Fridley. ; 2) The River of the Falls/The Urban River (River Mile 862 to 852) — From Brooklyn Center the river approaches several falls, beginning with Saint Anthony, and enters the historic Milling District near downtown Minneapolis. ; 3) The Gorge/Where the Rivers Meet (River Mile 852 to 843)  — After the Milling District, the river enters the 
Title: Mississippi River
Content:   Control of the river was a strategic objective of both sides in the American Civil War, forming a part of the U.S. Anaconda Plan. In 1862 Union forces coming down the river successfully cleared Confederate defenses at Island Number 10 and Memphis, Tennessee, while Naval forces coming upriver from the Gulf of Mexico captured New Orleans, Louisiana. The remaining major Confederate stronghold was on the heights overlooking the river at Vicksburg, Mississippi, and the Union's Vicksburg Campaign (December 1862 to July 1863), and the fall of Port Hudson, completed control of the lower Mississippi River. The Union victory ending the Siege of Vicksburg on July 4, 1863, was pivotal to the Union's final victory of the Civil War.
Title: Mississippi River
Content:  River of the North; to the Atlantic Ocean by the Great Lakes and the Saint Lawrence River; and to the Gulf of Mexico by the Rio Grande, the Alabama and Tombigbee rivers, the Chattahoochee and Appalachicola rivers, and various smaller coastal waterways along the Gulf. The Mississippi River empties into the Gulf of Mexico about 100 mi downstream from New Orleans. Measurements of the length of the Mississippi from Lake Itasca to the Gulf of Mexico vary somewhat, but the United States Geological Survey's number is 2340 mi. The retention time from Lake Itasca to the Gulf is typically about 90 days. The stream gradient of the entire river is 0.01%, a drop of 450 m over 3,766 km.
Title: Mississippi River
Content:  The word Mississippi itself comes from Misi zipi, the French rendering of the Anishinaabe (Ojibwe or Algonquin) name for the river, Misi-ziibi (Great River). In the 18th century, the river was the primary western boundary of the young United States, and since the country's expansion westward, the Mississippi River has been widely considered a convenient, if approximate, dividing line between the Eastern, Southern, and Midwestern United States, and the Western United States. This is exemplified by the Gateway Arch in St. Louis and the phrase "Trans-Mississippi" as used in the name of the Trans-Mississippi Exposition. It is common to qualify a regionally superlative landmark in relation to it, such as "the highest peak east of the Mississippi" or "the oldest city west of the Mississippi". The FCC also uses it as the dividing line for broadcast call-signs, which begin with W to the east and K to the west, mixing together in media markets along the river.
Title: Mississippi River
Content:  The Mississippi River runs through or along 10 states, from Minnesota to Louisiana, and is used to define portions of these states borders, with Wisconsin, Illinois, Kentucky, Tennessee, and Mississippi along the east side of the river, and Iowa, Missouri, and Arkansas along its west side. Substantial parts of both Minnesota and Louisiana are on either side of the river, although the Mississippi defines part of the boundary of each of these states. In all of these cases, the middle of the riverbed at the time the borders were established was used as the line to define the borders between adjacent states. In various areas, the river has since shifted, but the state borders have not changed, still following the former bed of the Mississippi River as of their establishment, leaving several small isolated areas of one state across the new river channel, contiguous with the adjacent state. Also, due to a meander in the river, a small part of western Kentucky is contiguous with Tennessee but isolated from the rest of its state.
Title: Pearl River (Mississippi–Louisiana)
Content:  The Pearl River is a river in the U.S. states of Mississippi and Louisiana. It forms in Neshoba County, Mississippi from the confluence of Nanih Waiya and Tallahaga creeks, and has a meander length of 444 mi. The lower part of the river forms part of the boundary between Mississippi and Louisiana. The river watershed contains large areas of bottomland hardwood swamp and cypress swamp, providing habitat for many species of wildlife, including sturgeon and black bears. As recently as 2008, endangered ivory-billed woodpeckers were reportedly sighted here. The mouth of the river creates important marsh habitat along salinity gradients, which has been the subject of many scientific studies. It is considered to be one of the most critical areas of natural habitat remaining in Louisiana. Mississippi‘s capital and largest city, Jackson, is located along the upper reaches of the river. Most of the towns along the river, starting with Philadelphia, Mississippi in the north, are within the boundaries of that state.
Title: Confluence
Content:  tributary the Yazoo. Both rivers, as well as the bluffs, played an important role in the Vicksburg Campaign, a pivotal event of the American Civil War. ; The Missouri River flows into the Mississippi River at Jones-Confluence Point State Park, just north of St. Louis, Missouri. Slightly further upstream, the Illinois River flows into the Mississippi. ; The Madison, Jefferson and Gallatin Rivers in Three Forks, Montana form the confluence of the Missouri River. ; At Keokuk, Iowa, the Des Moines River flows into the Mississippi. This forms the political tripoint between the U.S. states of Iowa, Missouri, and Illinois. ; Just south of Cairo, Illinois, the Ohio River flows into the Mississippi, forming the tripoint between 

Question: where did the mississippi river end?
Answer: Gulf of Mexico.