Mississippi River basin

E50492

drainage basin river basin watershed

The Mississippi River basin is the vast drainage area of the Mississippi River system, encompassing much of the central United States and parts of Canada and covering one of the largest river basins in the world.

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All labels observed (14)

Label	Occurrences
Mississippi River basin canonical	99
Mississippi River watershed	87
Mississippi River system	16
Mississippi River Basin	12
Mississippi River drainage basin	3
Mississippi River drainage	2
Mississippi River basin; Kingdom of France	1
Mississippi River headwaters region	1
Mississippi drainage basin	1
Mississippi–Missouri river system	1
Missouri–Mississippi river system	1
Ohio–Mississippi river system	1
Upper Mississippi River basin	1
Upper Mississippi River drainage basin	1

How this entity was disambiguated

This entity first appeared as the object of triple T396839 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Mississippi River basin
Context triple: [Great Plains, borders, Mississippi River basin]

A. Mississippi River valley
The Mississippi River valley is a vast, fertile lowland region in the central United States shaped by the Mississippi River, historically crucial for agriculture, trade, and settlement.
B. Upper Mississippi Valley
The Upper Mississippi Valley is a region along the upper course of the Mississippi River, encompassing parts of several Midwestern U.S. states and historically significant for trade, settlement, and military activity.
C. Mississippi River
The Mississippi River is one of the longest and most significant rivers in the United States, serving as a major waterway for transportation, commerce, and drainage across much of the central continent.
D. Great Lakes–St. Lawrence system
The Great Lakes–St. Lawrence system is a vast interconnected chain of freshwater lakes and the St. Lawrence River that forms one of the world’s largest inland waterways, linking the interior of North America to the Atlantic Ocean.
E. Tennessee Valley
The Tennessee Valley is a region in the southeastern United States centered around the Tennessee River, known for its historically rural economy, flood-prone landscape, and large-scale development through New Deal-era infrastructure and power projects.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Mississippi River basin
Target entity description: The Mississippi River basin is the vast drainage area of the Mississippi River system, encompassing much of the central United States and parts of Canada and covering one of the largest river basins in the world.

A. Mississippi River valley
The Mississippi River valley is a vast, fertile lowland region in the central United States shaped by the Mississippi River, historically crucial for agriculture, trade, and settlement.
B. Upper Mississippi Valley
The Upper Mississippi Valley is a region along the upper course of the Mississippi River, encompassing parts of several Midwestern U.S. states and historically significant for trade, settlement, and military activity.
C. Mississippi River
The Mississippi River is one of the longest and most significant rivers in the United States, serving as a major waterway for transportation, commerce, and drainage across much of the central continent.
D. Great Lakes–St. Lawrence system
The Great Lakes–St. Lawrence system is a vast interconnected chain of freshwater lakes and the St. Lawrence River that forms one of the world’s largest inland waterways, linking the interior of North America to the Atlantic Ocean.
E. Tennessee Valley
The Tennessee Valley is a region in the southeastern United States centered around the Tennessee River, known for its historically rural economy, flood-prone landscape, and large-scale development through New Deal-era infrastructure and power projects.
F. None of above. chosen

Statements (79)

Predicate	Object
instanceOf	drainage basin ⓘ river basin ⓘ watershed ⓘ
alsoKnownAs	Mississippi River basin ⓘ surface form: Mississippi River watershed Mississippi River basin ⓘ surface form: Mississippi drainage basin
area	about 1.2 million square miles ⓘ about 3.2 million square kilometers ⓘ
climate	varies from humid subtropical to semi-arid and continental ⓘ
contains	extensive agricultural lands ⓘ floodplains ⓘ major urban areas ⓘ wetlands ⓘ
country	Canada ⓘ United States of America ⓘ surface form: United States
crosses	multiple physiographic regions of North America ⓘ
drainagePercentageOfUS	about 41 percent ⓘ
drains	Mississippi River ⓘ
drainsInto	Gulf of Mexico ⓘ
drainsPortionOf	31 U.S. states ⓘ
environmentalIssue	flood risk ⓘ habitat loss ⓘ nutrient pollution ⓘ sediment loading ⓘ
governedBy	Mississippi River Commission ⓘ U.S. Army Corps of Engineers ⓘ
hasPart	Arkansas River basin ⓘ Atchafalaya Basin ⓘ surface form: Atchafalaya River basin Des Moines River ⓘ surface form: Des Moines River basin Illinois River ⓘ surface form: Illinois River basin Lower Mississippi River basin ⓘ Minnesota River ⓘ surface form: Minnesota River basin Missouri River Basin ⓘ surface form: Missouri River basin Ohio River ⓘ surface form: Ohio River basin Platte River ⓘ surface form: Platte River basin Red River of the South ⓘ surface form: Red River of the South basin Tennessee River ⓘ surface form: Tennessee River basin Upper Mississippi Valley ⓘ surface form: Upper Mississippi River basin Yazoo River basin ⓘ
hydrologicCodeSystem	United States Geological Survey hydrologic unit codes ⓘ
includesPartOf	Alabama ⓘ Alberta ⓘ Arkansas ⓘ Colorado ⓘ Alabama ⓘ surface form: Georgia Illinois ⓘ Indiana ⓘ Iowa ⓘ Kansas ⓘ Kentucky ⓘ Louisiana ⓘ Manitoba ⓘ Minnesota ⓘ Mississippi ⓘ Missouri River ⓘ surface form: Missouri Montana ⓘ Nebraska ⓘ New York ⓘ North Carolina ⓘ North Dakota ⓘ Ohio ⓘ Oklahoma ⓘ Pennsylvania ⓘ Saskatchewan ⓘ South Dakota ⓘ Tennessee ⓘ West Virginia ⓘ Wisconsin ⓘ Wyoming ⓘ
influences	hypoxic zone in the northern Gulf of Mexico ⓘ
locatedIn	Canada ⓘ North America ⓘ United States of America ⓘ surface form: United States
majorCityInBasin	Memphis ⓘ Minneapolis–Saint Paul ⓘ New Orleans ⓘ St. Louis, Missouri, United States ⓘ surface form: St. Louis
name	Mississippi River basin self-link ⓘ
partOf	Mississippi River basin self-linksurface differs ⓘ surface form: Mississippi River system
rank	one of the largest river basins in the world ⓘ

How these facts were elicited

Referenced by (227)

Full triples — surface form annotated when it differs from this entity's canonical label.

Root River valley → partOf → Mississippi River basin ⓘ

this entity surface form: Mississippi River watershed

Elk River → partOf → Mississippi River basin ⓘ

this entity surface form: Mississippi River watershed

Poteau River → partOfDrainageBasin → Mississippi River basin ⓘ

East Fork Whitewater River → partOf → Mississippi River basin ⓘ

this entity surface form: Mississippi River watershed

Mad River (Ohio) → partOf → Mississippi River basin ⓘ

Rock River basin → partOf → Mississippi River basin ⓘ

Lac qui Parle River → partOf → Mississippi River basin ⓘ

Cabot, Arkansas → locatedInHydrologicalFeature → Mississippi River basin ⓘ

this entity surface form: Mississippi River watershed

Yocona River (Yoknapatawpha River in fiction) → partOf → Mississippi River basin ⓘ

subject surface form: Yocona River

this entity surface form: Mississippi River watershed

Oologah Creek → partOf → Mississippi River basin ⓘ

Chippewa River (Minnesota) → riverSystem → Mississippi River basin ⓘ

this entity surface form: Mississippi River watershed

Chariton River → partOf → Mississippi River basin ⓘ

Tippecanoe River → partOf → Mississippi River basin ⓘ

Tug Fork → partOf → Mississippi River basin ⓘ

this entity surface form: Mississippi River watershed

Coal River → riverSystem → Mississippi River basin ⓘ

La Crosse River → riverSystem → Mississippi River basin ⓘ

La Crosse River → partOf → Mississippi River basin ⓘ

this entity surface form: Mississippi River watershed

Clear Creek (Iowa) → drainageBasin → Mississippi River basin ⓘ

Beaver River → riverSystem → Mississippi River basin ⓘ

Chicago Area Waterway System → connects → Mississippi River basin ⓘ

Gulf of Mexico watershed → includesRiverBasin → Mississippi River basin ⓘ

East Branch Iowa River → riverSystem → Mississippi River basin ⓘ

Paris, Tennessee → partOf → Mississippi River basin ⓘ

this entity surface form: Mississippi River watershed

Murray, Kentucky → partOf → Mississippi River basin ⓘ

West Branch Iowa River → partOf → Mississippi River basin ⓘ

this entity surface form: Mississippi River watershed

Kankakee River → partOf → Mississippi River basin ⓘ

St. Vrain Creek → partOf → Mississippi River basin ⓘ

this entity surface form: Mississippi River watershed

All labels observed (14)

How this entity was disambiguated Show

Statements (79)

How these facts were elicited Show

Referenced by (227)

How this entity was disambiguated

How these facts were elicited