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82-566: The Florida Parishes , on the east side of the Mississippi River —an area also known as the Northshore or Northlake region—are eight parishes in the southeastern portion of the U.S. state of Louisiana . The Florida Parishes were part of what was known as West Florida in the 18th and early 19th centuries. Unlike most of the state, this region was not part of the 1803 Louisiana Purchase , which applied to territory west of

164-542: A large mound of sand spanning the width of the river 55 feet below the surface, allowing fresh water and large cargo ships to pass over. Fresh river water flowing from the Mississippi into the Gulf of Mexico does not mix into the salt water immediately. The images from NASA 's MODIS show a large plume of fresh water, which appears as a dark ribbon against the lighter-blue surrounding waters. These images demonstrate that

246-734: A length of 3,710 miles (5,971 km), making it the fourth longest river in the world after the Nile , Amazon , and Yangtze . When measured by the largest stream source (by water volume), the Ohio River , by extension the Allegheny River , would be the source, and the Mississippi would begin in Pennsylvania . At its source at Lake Itasca , the Mississippi River is about 3 feet (0.91 m) deep. The average depth of

328-478: A natural process known as avulsion or delta switching, the lower Mississippi River has shifted its final course to the mouth of the Gulf of Mexico every thousand years or so. This occurs because the deposits of silt and sediment begin to clog its channel, raising the river's level and causing it to eventually find a steeper, more direct route to the Gulf of Mexico. The abandoned distributaries diminish in volume and form what are known as bayous . This process has, over

410-638: A range of racial groups, identify ethnically and/or culturally as Cajun or Louisiana Creole . Nearby Acadiana and Greater New Orleans, however, have more Cajuns and Louisiana Creoles as those regions are epicenters of Acadian and multiracial Louisiana heritage. While Greater New Orleans and Acadiana are historically and predominantly Roman Catholic , the Florida Parishes are greatly influenced by Protestantism through British colonialism and missionary efforts, in addition to American settlement. In contrast with North and Central Louisiana , however,

492-539: A vital transportation artery and communications link. In the 19th century, during the height of the ideology of manifest destiny , the Mississippi and several tributaries, most notably its largest, the Ohio and Missouri , formed pathways for the western expansion of the United States. The river also became the subject of American literature , particularly in the writings of Mark Twain . Formed from thick layers of

574-794: Is 208,200 cu ft/s (5,900 m /s). Thus, by volume, the main branch of the Mississippi River system at Cairo can be considered to be the Ohio River (and the Allegheny River further upstream), rather than the Middle Mississippi. In addition to the Ohio River , the major tributaries of the Lower Mississippi River are the White River , flowing in at the White River National Wildlife Refuge in east-central Arkansas;

656-575: Is a meandering river in a broad, flat area, only rarely flowing alongside a bluff (as at Vicksburg, Mississippi ). 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 miles (310 km) to its confluence with the Ohio River at Cairo, Illinois . The Middle Mississippi is relatively free-flowing. From St. Louis to

738-498: Is called the Lower Mississippi River from its confluence with the Ohio River to its mouth at the Gulf of Mexico, a distance of about 1,000 miles (1,600 km). At the confluence of the Ohio and the Middle Mississippi, the long-term mean discharge of the Ohio at Cairo, Illinois is 281,500 cubic feet per second (7,970 cubic meters per second), while the long-term mean discharge of the Mississippi at Thebes, Illinois (just upriver from Cairo)

820-912: Is controlled and managed as a series of pools created by 26 locks and dams. The Upper Mississippi River is joined by the Minnesota River at Fort Snelling in the Twin Cities ; the St. Croix River near Prescott, Wisconsin ; the Cannon River near Red Wing, Minnesota ; the Zumbro River at Wabasha, Minnesota ; the Black , La Crosse , and Root rivers in La Crosse, Wisconsin ; the Wisconsin River at Prairie du Chien, Wisconsin ;

902-546: Is entirely within the United States; the total drainage basin is 1,151,000 sq mi (2,980,000 km ), of which only about one percent is in Canada. The Mississippi ranks as the world's tenth-largest river by discharge flow, and the largest in North America. Native Americans have lived along the Mississippi River and its tributaries for thousands of years. Many were hunter-gatherers , but some, such as

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984-520: Is largely a multi-thread stream with many bars and islands. From its confluence with the St. Croix River downstream to Dubuque, Iowa , the river is entrenched, with high bedrock bluffs lying on either side. The height of these bluffs decreases to the south of Dubuque, though they are still significant through Savanna, Illinois . This topography contrasts strongly with the Lower Mississippi, which

1066-539: Is the only true waterfall on the entire Mississippi River. The water elevation continues to drop steeply as it passes through the gorge carved by the waterfall. After the completion of the St. Anthony Falls Lock and Dam in 1963, the river's head of navigation moved upstream, to the Coon Rapids Dam . However, the Locks were closed in 2015 to control the spread of invasive Asian carp , making Minneapolis once again

1148-880: The Arkansas River , joining the Mississippi at Arkansas Post ; the Big Black River in Mississippi; and the Yazoo River , meeting the Mississippi at Vicksburg, Mississippi . Deliberate water diversion at the Old River Control Structure in Louisiana allows the Atchafalaya River in Louisiana to be a major distributary of the Mississippi River, with 30% of the combined flow of the Mississippi and Red Rivers flowing to

1230-551: The English colonies , or from Great Britain , poured into West Florida to populate this frontier. By 1775, many Loyalists had migrated here from the British colonies, at a time of increasing tensions among colonists who wanted independence. They developed large, prosperous sugar cane plantations based on the labor of hundreds of enslaved African Americans. Bernardo de Gálvez , Governor of Spanish Luisiana , recruited troops for

1312-749: The Florida Parishes area was declared to be part of the Louisiana Purchase and an American possession. The United States initially established "Feliciana County" as part of the Territory of Orleans , later subdividing it to form four parishes: New Feliciana, East Baton Rouge, St. Helena, and St. Tammany. In 1812, Louisiana was admitted to the Union, with Feliciana Parish included. Addressing complaints that citizens of western Feliciana Parish found it difficult to travel during bad weather to

1394-585: The French and Indian War 's end, Spain ceded Florida to Great Britain in exchange for rights in Cuba. Defeated by Britain, France ceded Louisiana and the Isle of Orleans to Spain, and territory east of the Mississippi River to Britain. The area that is now East and West Feliciana was later claimed by Britain as part of its West Florida colony. Encouraged by land grants given by the colony, emigrants, mainly from

1476-577: The Gulf of Mexico , part of the Atlantic Ocean. The total catchment of the Mississippi River covers nearly 40% of the landmass of the continental United States. The highest point within the watershed is also the highest point of the Rocky Mountains , Mount Elbert at 14,440 feet (4,400 m). In the United States, the Mississippi River drains the majority of the area between the crest of

1558-535: The Louisiana Purchase . Aggrieved by the provincial Spanish government, American and British settlers in the part of West Florida west of the Pearl River declared an independent Republic of West Florida in 1810 and elected their leader, Fulwar Skipwith , as governor. None of this short-lived Republic of West Florida lay within the boundaries of the modern U.S. state of Florida . The flag of

1640-603: The Minnesota River , James River , and Milk River valleys. When the ice sheet completely retreated, many of these "temporary" rivers found paths to Hudson Bay or the Arctic Ocean, leaving the Mississippi Basin with many features "over-sized" for the existing rivers to have carved in the same time period. Ice sheets during the Illinoian Stage , about 300,000 to 132,000 years before present, blocked

1722-580: The Mississippi state line on its eastern and northern borders to the Mississippi River on its western border, and Lake Pontchartrain on its southern border. The most populated urban area is the Baton Rouge metropolitan statistical area . St. Tammany Parish is part of the New Orleans metropolitan area . The parishes have a land area of 4,685.184 square miles (12,134.57 km), or 10.755% of

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1804-559: The Mississippi River Delta in the Gulf of Mexico . With its many tributaries , the Mississippi's watershed drains all or parts of 32 U.S. states and two Canadian provinces between the Rocky and Appalachian mountains. The river either borders or passes through the states of Minnesota , Wisconsin , Iowa , Illinois , Missouri , Kentucky , Tennessee , Arkansas , Mississippi , and Louisiana . The main stem

1886-466: The Mound Builders , formed prolific agricultural and urban civilizations, and some practiced aquaculture . The arrival of Europeans in the 16th century changed the native way of life as first explorers, then settlers, ventured into the basin in increasing numbers. The river served sometimes as a barrier, forming borders for New Spain , New France , and the early United States, and throughout as

1968-1320: The Rock River at the Quad Cities ; the Iowa River near Wapello, Iowa ; the Skunk River south of Burlington, Iowa ; and the Des Moines River at Keokuk, Iowa . Other major tributaries of the Upper Mississippi include the Crow River in Minnesota, the Chippewa River in Wisconsin, the Maquoketa River and the Wapsipinicon River in Iowa, and the Illinois River in Illinois. The Upper Mississippi

2050-887: The Rocky Mountains and the crest of the Appalachian Mountains , except for various regions drained to Hudson Bay by the Red 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

2132-557: The Territory of Orleans , which joined the Union as the U.S. state of Louisiana in 1812. In 1810, four parishes were established in the region: East Baton Rouge, Feliciana, St. Helena, and St. Tammany. Later in the 19th century, five additional parishes were created as follows, with Feliciana Parish ceasing to exist: Washington Parish, 1819, from part of St. Tammany Parish; East Feliciana and West Feliciana parishes, 1824, by dividing Feliciana Parish; Livingston Parish, 1832, from part of St. Helena Parish; and Tangipahoa Parish, 1869 during

2214-429: The headwaters region and serve multiple purposes, including power generation and recreation. The remaining 29 dams, beginning in downtown Minneapolis, all contain locks and were constructed to improve commercial navigation of the upper river. Taken as a whole, these 43 dams significantly shape the geography and influence the ecology of the upper river. Beginning just below Saint Paul, Minnesota , and continuing throughout

2296-491: The most recent Ice Age . The southernmost extent of this enormous glaciation extended well into the present-day United States and Mississippi basin. When the ice sheet began to recede, hundreds of feet of rich sediment were deposited, creating the flat and fertile landscape of the Mississippi Valley. During the melt, giant glacial rivers found drainage paths into the Mississippi watershed, creating such features as

2378-604: The surprise attacks and capture of Fort Bute and Baton Rouge , both of which soon capitulated. Galvez also captured Natchez , Mobile , and Pensacola from British forces. At the end of the American Revolutionary War , Spain had regained both the West and East Florida colonies. Thus, the part of today's Louisiana which is east of the Mississippi River and north of Lake Pontchartrain fell under Spanish control, from about 1780 until 1810. In 1800, Spain

2460-476: The "true head" of the Mississippi River as a combination of the last four letters of the Latin word for truth ( ver itas ) and the first two letters of the Latin word for head ( ca put ). However, the lake is in turn fed by a number of smaller streams. From its origin at Lake Itasca to St. Louis, Missouri , the waterway's flow is moderated by 43 dams. Fourteen of these dams are located above Minneapolis in

2542-569: The 18th century, the river was set by the Treaty of Paris as, for the most part, the western border of the new United States. With the Louisiana Purchase and the country's westward expansion, it became a convenient boundary line between the western and eastern halves of the country. This is reflected in the Gateway Arch in St. Louis, which was designed to symbolize the opening of the West, and

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2624-413: The 2010 census was 1,019,357 residents, or 22.49% of the state's population at that time. Its largest communities are, in descending order of population (2010 U.S. census), Baton Rouge , Slidell , Central , Hammond , Shenandoah ( CDP ), Zachary , Baker , Bogalusa , Mandeville , Gardere (CDP), Merrydale (CDP), Denham Springs , Covington , Lacombe (CDP), and Oak Hills Place (CDP). Tabulating

2706-422: The 2019 census estimates, the Florida Parishes had a population of 1,067,634, making it the third largest region by population following Acadiana (1,490,449) and Greater New Orleans (1,507,017); in 2020, the tabulated population of the Florida Parishes was 1,088,014. Common among South Louisiana and in contrast with the U.S. Census Bureau 's publications, a substantial portion of the region's population, spanning

2788-535: The 20th century, the Mississippi River has also experienced major pollution and environmental problems — most notably elevated nutrient and chemical levels from agricultural runoff, the primary contributor to the Gulf of Mexico dead zone . 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

2870-579: The Earth's mantle (specifically, the Bermuda hotspot ) that was undergoing a period of intense activity. The upwelling of magma from the hotspot forced the further uplift to a height of perhaps 2–3 km of part of the Appalachian-Ouachita range, forming an arch that blocked southbound water flows. The uplifted land quickly eroded and, as North America moved away from the hot spot and as

2952-663: The Florida Parishes region is still dominated by the Roman Catholic Church as its single-largest Christian denomination . The second-largest overall denominational tradition in the region (especially Greater Baton Rouge) are Baptists . Baptists form the largest overall Protestant majority within Louisiana according to the Pew Research Center 's 2014 study, spread among the Southern Baptist Convention —established in separation from

3034-417: The Florida Parishes was first claimed by French colonists as part of Louisiane or French Louisiana . The French settled New Orleans, Mobile (now within Alabama), and founded numerous other settlements. Following the French defeat in the French and Indian War , as the North American front of the Seven Years' War was known, France withdrew from North America, ceding the eastern half of French Louisiana —

3116-401: The French La Louisiane , the area was settled largely by French colonists by about 1775, when it came under Spanish control during the American Revolutionary War . It was named by Spanish Governor Galvez . In 1777 he married a widow named Marie Félicité St. Maxent and honored her in the name. The town of Jackson was founded in 1815 as the seat of justice for Feliciana Parish, before

3198-588: The Gulf of Mexico by this route, rather than continuing down the Mississippi's current channel past Baton Rouge and New Orleans on a longer route to the Gulf. Although the Red River was once an additional tributary, its water now flows separately into the Gulf of Mexico through the Atchafalaya River. The Mississippi River has the world's fourth-largest drainage basin ("watershed" or "catchment"). The basin covers more than 1,245,000 square miles (3,220,000 km ), including all or parts of 32 U.S. states and two Canadian provinces. The drainage basin empties into

3280-409: The Gulf. The Mississippi River empties into the Gulf of Mexico about 100 miles (160 km) 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 2,340 miles (3,766 km). The retention time from Lake Itasca to the Gulf is typically about 90 days; while speed varies along

3362-404: The Illinoian Stage. Timeline of outflow course changes In March 1876, the Mississippi suddenly changed course near the settlement of Reverie, Tennessee , leaving a small part of Tipton County, Tennessee , attached to Arkansas and separated from the rest of Tennessee by the new river channel. Since this event was an avulsion , rather than the effect of incremental erosion and deposition,

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3444-408: The Midwestern and eastern U.S. These earthquakes created Reelfoot Lake in Tennessee from the altered landscape near the river. When measured from its traditional source at Lake Itasca , the Mississippi has a length of 2,340 miles (3,766 km). When measured from its longest stream source (most distant source from the sea), Brower's Spring in Montana , the source of the Missouri River , it has

3526-416: The Mississippi River between Saint Paul and Saint Louis is between 9 and 12 feet (2.7–3.7 m) deep, the deepest part being Lake Pepin , which averages 20–32 feet (6–10 m) deep and has a maximum depth of 60 feet (18 m). Between where the Missouri River joins the Mississippi at Saint Louis, Missouri, and Cairo, Illinois, the depth averages 30 feet (9 m). Below Cairo, where the Ohio River joins,

3608-411: The Mississippi River has experienced numerous large and small changes to its main course, as well as additions, deletions, and other changes among its numerous tributaries, and the lower Mississippi River has used different pathways as its main channel to the Gulf of Mexico across the delta region. As Pangaea began to break up about 95 million years ago, North America passed over a volcanic " hotspot " in

3690-415: The Mississippi River near New Madrid, Missouri , between Memphis and St. Louis, is related to an aulacogen (failed rift) that formed at the same time as the Gulf of Mexico. This area is still quite active seismically. Four great earthquakes in 1811 and 1812 , estimated at 8 on the Richter magnitude scale , had tremendous local effects in the then sparsely settled area, and were felt in many other places in

3772-442: The Mississippi River. Feliciana Parish, Louisiana Feliciana Parish , or New Feliciana , French: Paroisse de Félicianne, was a parish of the Territory of Orleans and the state of Louisiana , formed in 1810 from West Florida territory. Given an increase in population, it was divided in 1824 into East Feliciana Parish and West Feliciana Parish . Feliciana is a Spanish word meaning "happy land". Formerly part of

3854-408: The Mississippi River. First settled by the French, it was ceded to Great Britain in 1763 after France's defeat in the Seven Years' War. The British exchanged it with Spain following the American Revolutionary War for territory outside North America. This area was acquired by the U.S. in 1812 and combined with the new state of Louisiana. In terms of historical European influence, the area that became

3936-404: The Mississippi near Rock Island, Illinois, diverting it to its present channel farther to the west, the current western border of Illinois. The Hennepin Canal roughly follows the ancient channel of the Mississippi downstream from Rock Island to Hennepin, Illinois . South of Hennepin, to Alton, Illinois , the current Illinois River follows the ancient channel used by the Mississippi River before

4018-547: The Northern Baptists (today the American Baptist Churches USA ) over Southern white clergy and laymen's justifications of slavery—and the National Baptist Convention, USA which formed out of many black Baptist bodies leaving the Southern Baptists and white supervision. Mississippi River The Mississippi River is the primary river of the largest drainage basin in the United States . From its traditional source of Lake Itasca in northern Minnesota , it flows generally south for 2,340 miles (3,766 km) to

4100-443: The Ohio River confluence, the Middle Mississippi falls 220 feet (67 m) over 180 miles (290 km) for an average rate of 1.2 feet per mile (23 cm/km). At its confluence with the Ohio River, the Middle Mississippi is 315 feet (96 m) 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. The Mississippi River

4182-408: The Ohio to the Gulf of Mexico. The Upper Mississippi runs from its headwaters to its confluence with the Missouri River at St. Louis, Missouri. It is divided into two sections: The source of the Upper Mississippi branch is traditionally accepted as Lake Itasca , 1,475 feet (450 m) above sea level in Itasca State Park in Clearwater County, Minnesota . The name Itasca was chosen to designate

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4264-463: The Reconstruction era, from parts of Livingston, St. Helena, St. Tammany, and Washington parishes. In 1990, Louisiana's legislature formally designated this part of the state as "the Republic of West Florida Historic Region, or the Florida Parishes." Since 1993, Interstate 12 , which runs east and west through the Northshore region , has been officially designated as the Republic of West Florida Parkway. The Florida Parishes of Louisiana stretch from

4346-438: The Republic of West Florida, which was later identified with the Confederates' Bonnie Blue Flag of the Civil War era, continues to be flown on many public buildings in the Florida Parishes. In 2006, the state legislature designated it the "official flag of the Republic of West Florida Historic Region." The republic was quickly and forcibly annexed by the United States, and the present-day Florida Parishes were incorporated into

4428-430: The Upper Mississippi River is the Upper St. Anthony Falls Lock and Dam in Minneapolis. Above the dam, the river's elevation is 799 feet (244 m). Below the dam, the river's elevation is 750 feet (230 m). This 49-foot (15 m) drop is the largest of all the Mississippi River locks and dams. The origin of the dramatic drop is a waterfall preserved adjacent to the lock under an apron of concrete. Saint Anthony Falls

4510-426: The Upper Mississippi is a simple steel culvert, through which the river (locally named "Nicolet Creek") flows north from Lake Nicolet under "Wilderness Road" to the West Arm of Lake Itasca, within Itasca State Park . The earliest bridge across the Mississippi River was built in 1855. It spanned the river in Minneapolis where the current Hennepin Avenue Bridge is located. No highway or railroad tunnels cross under

4592-412: The War of 1812. Aboriginal residents here at the time of European encounter were Tunica Indians . They had migrated into the area, displacing the native Houma people . Later, the Spanish explored and claimed the area. The French were not far behind, for LaSalle , having explored the Mississippi River in 1682, claimed all the lands (stole) drained by it in the name of Louis XIV . In 1763, at

4674-555: The areas drained by them. Denser salt water from the Gulf of Mexico forms a salt wedge along the river bottom near the mouth of the river, while fresh water flows near the surface. In drought years, with less fresh water to push it out, salt water can travel many miles upstream—64 miles (103 km) in 2022—contaminating drinking water supplies and requiring the use of desalination . The United States Army Corps of Engineers constructed "saltwater sills" or "underwater levees" to contain this in 1988, 1999, 2012, and 2022. This consists of

4756-427: The course of the river, this gives an overall average of around 26 mi (42 km) per day, or 1 mi (1.6 km) per hour. The stream gradient of the entire river is 0.01%, a drop of 450 m over 3,766 km. The Mississippi River discharges at an annual average rate of between 200 and 700 thousand cubic feet per second (6,000 and 20,000 m /s). The Mississippi is the fourteenth largest river in

4838-403: The delta of the Chippewa River of Wisconsin as it enters the Upper Mississippi, is more than 2 miles (3.2 km) wide. By the time the Upper Mississippi reaches Saint Paul , Minnesota, below Lock and Dam No. 1, it has dropped more than half its original elevation and is 687 feet (209 m) above sea level. From St. Paul to St. Louis, Missouri, the river elevation falls much more slowly and

4920-532: The depth averages 50–100 feet (15–30 m) deep. The deepest part of the river is in New Orleans, where it reaches 200 feet (61 m) deep. 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

5002-413: The focus on the " Trans-Mississippi " region in the Trans-Mississippi Exposition . Regional landmarks are often classified in relation to the river, 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, overlapping in media markets along

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5084-441: The hotspot's activity declined, the crust beneath the embayment region cooled, contracted and subsided to a depth of 2.6 km, and around 80 million years ago the Reelfoot Rift formed a trough that was flooded by the Gulf of Mexico . As sea levels dropped, the Mississippi and other rivers extended their courses into the embayment , which gradually became filled with sediment with the Mississippi River at its center. Through

5166-412: The land from the Mississippi River to the Appalachian Mountains , excluding New Orleans — to Great Britain in the 1763 Treaty of Paris . (France had previously transferred New Orleans and its lands west of the Mississippi to Spain in the 1762 Treaty of Fontainebleau , although Spain did not fully take control until after the Louisiana Rebellion of 1768 .) Spain also ceded Florida to Britain under

5248-402: The last two decades, this number was only 160 million short tons (145 million metric tons) per year. The reduction in sediment transported down the Mississippi River is the result of engineering modification of the Mississippi, Missouri, and Ohio rivers and their tributaries by dams, meander cutoffs , river-training structures, and bank revetments and soil erosion control programs in

5330-437: The lower 10 miles (16 km) of the Kaskaskia River, forming a new Mississippi channel and cutting off the town from the rest of the state. Later flooding destroyed most of the remaining town, including the original State House. Today, the remaining 2,300 acres (930 ha) island and community of 14 residents is known as an enclave of Illinois and is accessible only from the Missouri side. The New Madrid Seismic Zone , along

5412-449: 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. Many of the communities along the Mississippi River are listed below; most have either historic significance or cultural lore connecting them to the river. They are sequenced from the source of the river to its end. The road crossing highest on

5494-401: The newly formed United States . Pinckney's Treaty of 1795 settled the initial dispute, but the sale of Louisiana by France in 1803 raised new questions about West Florida. The Third Treaty of San Ildefonso and the subsequent Treaty of Aranjuez that restored French control over Louisiana did not include Spanish West Florida, leaving the territory outside of the land acquired by the U.S. in

5576-430: The parish was divided into two jurisdictions. The town also served as a land office and as a center for learning and culture. Legend holds that the town was originally called Bear Corners for the many wild black bears crossing nearby Thompson's Creek. It was named by Anglo-American settlers after General Andrew Jackson , who reportedly camped there with his troops on the return trip from the Battle of New Orleans during

5658-425: The past 5,000 years, caused the coastline of south Louisiana to advance toward the Gulf from 15 to 50 miles (24 to 80 km). The currently active delta lobe is called the Birdfoot Delta, after its shape, or the Balize Delta , after La Balize, Louisiana , the first French settlement at the mouth of the Mississippi. The current form of the Mississippi River basin was largely shaped by the Laurentide Ice Sheet of

5740-436: The plume did not mix with the surrounding sea water immediately. Instead, it stayed intact as it flowed through the Gulf of Mexico, into the Straits of Florida , and entered the Gulf Stream . The Mississippi River water rounded the tip of Florida and traveled up the southeast coast to the latitude of Georgia before finally mixing in so thoroughly with the ocean that it could no longer be detected by MODIS. Over geologic time,

5822-426: The river's silt deposits, the Mississippi embayment is one of the most fertile regions of the United States; steamboats were widely used in the 19th and early 20th centuries to ship agricultural and industrial goods. During the American Civil War , the Mississippi's capture by Union forces marked a turning point towards victory , due to the river's strategic importance to the Confederate war effort. Because of

5904-479: 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

5986-672: The river. Due to its size and importance, it has been nicknamed The Mighty Mississippi River or simply The Mighty Mississippi . The Mississippi River can be divided into three sections: the Upper Mississippi , the river from its headwaters to the confluence with the Missouri River; the Middle Mississippi, which is downriver from the Missouri to the Ohio River; and the Lower Mississippi , which flows from

6068-400: The site of the head of navigation of the river. The Upper Mississippi has a number of natural and artificial lakes, with its widest point being Lake Winnibigoshish , near Grand Rapids, Minnesota , over 11 miles (18 km) across. Lake Onalaska , created by Lock and Dam No. 7 , near La Crosse, Wisconsin , is more than 4 miles (6.4 km) wide. Lake Pepin , a natural lake formed behind

6150-532: The state line still follows the old channel. The town of Kaskaskia, Illinois once stood on a peninsula at the confluence of the Mississippi and Kaskaskia (Okaw) Rivers . Founded as a French colonial community, it later became the capital of the Illinois Territory and was the first state capital of Illinois until 1819. Beginning in 1844, successive flooding caused the Mississippi River to slowly encroach east. A major flood in 1881 caused it to overtake

6232-403: The state's total land area. The Florida Parishes (in common with Greater New Orleans and Acadiana ) has a humid subtropical climate , prone to hurricanes. Many parts of the Florida Parishes and parts of Acadiana flooded during the 2016 floods . During Hurricane Katrina , both regions were used as evacuation areas for residents of Greater New Orleans. The population of the Florida Parishes at

6314-412: The substantial growth of cities and the larger ships and barges that replaced steamboats, the first decades of the 20th century saw the construction of massive engineering works such as levees , locks and dams , often built in combination. A major focus of this work has been to prevent the lower Mississippi from shifting into the channel of the Atchafalaya River and bypassing New Orleans . Since

6396-544: The treaty. To administer the new territory along the Gulf of Mexico, Britain divided it at the Apalachicola River into two new colonial provinces, East and West Florida . However, following the American Revolutionary War , Britain ceded its Florida territories back to Spain, but uncertainty around the territories' borders sparked the West Florida Controversy , a territorial dispute with

6478-573: The upper and lower river, the Mississippi is further controlled by thousands of wing dikes that moderate the river's flow in order to maintain an open navigation channel and prevent the river from eroding its banks. The head of navigation on the Mississippi is the St. Anthony Falls Lock. Before the Coon Rapids Dam in Coon Rapids, Minnesota , was built in 1913, steamboats could occasionally go upstream as far as Saint Cloud, Minnesota , depending on river conditions. The uppermost lock and dam on

6560-479: The world by volume. On average, the Mississippi has 8% the flow of the Amazon River , which moves nearly 7 million cubic feet per second (200,000 m /s) during wet seasons. Before 1900, the Mississippi River transported an estimated 440 million short tons (400 million metric tons) of sediment per year from the interior of the United States to coastal Louisiana and the Gulf of Mexico. During

6642-543: Was American, Spain disagreed and continued their occupation. (Since the 1760s, the eastern boundary of West Florida had been the Apalachicola River , and Pensacola was the capital .) Feliciana colonists, unhappy under the Spanish regime, revolted in 1810 and established the short-lived Republic of West Florida . They petitioned President James Madison to annex the area. Their request was honored when, in October 1810,

6724-458: Was compelled to cede Louisiana to France . After a failed effort to regain control of Haiti, in 1803, Napoleon sold Louisiana and its vast territories west of the Mississippi River to the United States in the Louisiana Purchase . The West Florida section of what is now the state of Louisiana, however, was not included; the Louisiana Purchase was vague as to defining its eastern boundary. Though President Jefferson insisted that this area

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