Minnesota–South Dakota border

E354895

internationally recognized internal boundary state border

The Minnesota–South Dakota border is the state line in the north-central United States separating Minnesota and South Dakota, much of which follows natural features such as rivers and survey lines across the prairie.

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All labels observed (6)

Label	Occurrences
Minnesota–South Dakota border canonical	4
Minnesota–South Dakota border area	1
Minnesota–South Dakota state line	1
South Dakota border near Brookings, South Dakota	1
South Dakota state line	1
South Dakota–Minnesota border	1

How this entity was disambiguated

This entity first appeared as the object of triple T3393667 — 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: Minnesota–South Dakota border
Context triple: [Minnesota River, sourceLocation, Minnesota–South Dakota border]

A. Nebraska–South Dakota border
The Nebraska–South Dakota border is a U.S. state boundary running largely along the Missouri River, separating Nebraska to the south from South Dakota to the north.
B. Iowa–South Dakota border
The Iowa–South Dakota border is the state line in the north-central United States that largely follows the course of the Big Sioux River, separating Iowa from South Dakota.
C. Nebraska–Missouri border
The Nebraska–Missouri border is the state line in the central United States that largely follows the course of the Missouri River, separating Nebraska to the west from Missouri to the east.
D. Nebraska–Iowa border
The Nebraska–Iowa border is the state line in the central United States that largely follows the course of the Missouri River, separating Nebraska to the west from Iowa to the east.
E. Missouri–Kansas state line
The Missouri–Kansas state line is the boundary separating the states of Missouri and Kansas, notably running through the Kansas City metropolitan area and dividing it between the two states.
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: Minnesota–South Dakota border
Target entity description: The Minnesota–South Dakota border is the state line in the north-central United States separating Minnesota and South Dakota, much of which follows natural features such as rivers and survey lines across the prairie.

A. Nebraska–South Dakota border
The Nebraska–South Dakota border is a U.S. state boundary running largely along the Missouri River, separating Nebraska to the south from South Dakota to the north.
B. Iowa–South Dakota border
The Iowa–South Dakota border is the state line in the north-central United States that largely follows the course of the Big Sioux River, separating Iowa from South Dakota.
C. Nebraska–Missouri border
The Nebraska–Missouri border is the state line in the central United States that largely follows the course of the Missouri River, separating Nebraska to the west from Missouri to the east.
D. Nebraska–Iowa border
The Nebraska–Iowa border is the state line in the central United States that largely follows the course of the Missouri River, separating Nebraska to the west from Iowa to the east.
E. Missouri–Kansas state line
The Missouri–Kansas state line is the boundary separating the states of Missouri and Kansas, notably running through the Kansas City metropolitan area and dividing it between the two states.
F. None of above. chosen

Statements (42)

Predicate	Object
instanceOf	internationally recognized internal boundary ⓘ state border ⓘ
adjacentTo	Minnesota counties along the western edge of Minnesota ⓘ South Dakota counties along the eastern edge of South Dakota ⓘ
cameIntoExistenceWith	admission of Minnesota to the Union ⓘ admission of South Dakota to the Union ⓘ
country	United States of America ⓘ surface form: United States
crosses	agricultural land ⓘ prairie landscape ⓘ
definedBy	U.S. federal legislation ⓘ
established	19th century ⓘ
follows	Big Sioux River ⓘ Bois de Sioux River ⓘ Red River of the North ⓘ prairie survey lines ⓘ
followsNaturalFeature	river channels ⓘ
followsSurveyLines	Public Land Survey System ⓘ surface form: Public Land Survey System lines
hasBorderLength	approximately 400 miles ⓘ
hasCoordinateRegion	approximately 43°30′N to 46°30′N ⓘ approximately 96°W to 97°W ⓘ
hasLanguage	English name ⓘ
hasLegalStatus	internal boundary of the United States ⓘ
hasName	Minnesota–South Dakota border self-link ⓘ Minnesota–South Dakota border self-linksurface differs ⓘ surface form: Minnesota–South Dakota state line
hasTransportationCrossings	bridges over the Big Sioux River ⓘ bridges over the Red River of the North ⓘ highways ⓘ railroads ⓘ
locatedInRegion	Midwestern United States ⓘ Upper Midwest of the United States ⓘ surface form: north-central United States
mapFeatureClass	political boundary ⓘ
northernTerminusNear	Wahpeton, North Dakota ⓘ
partOf	borders of Minnesota ⓘ borders of South Dakota ⓘ
separates	Minnesota ⓘ South Dakota ⓘ
southernTerminusNear	Sioux City, Iowa ⓘ
touchesState	Iowa ⓘ North Dakota ⓘ
usedFor	law enforcement jurisdiction ⓘ state jurisdiction delimitation ⓘ taxation jurisdiction ⓘ

How these facts were elicited

Referenced by (9)

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

Minnesota River → sourceLocation → Minnesota–South Dakota border ⓘ

Iowa–South Dakota border → hasNeighboringBorderSegment → Minnesota–South Dakota border ⓘ

this entity surface form: South Dakota–Minnesota border

Minnesota State Highway 23 → westernTerminus → Minnesota–South Dakota border ⓘ

this entity surface form: South Dakota border near Brookings, South Dakota

Hills, Minnesota → borderRegion → Minnesota–South Dakota border ⓘ

this entity surface form: Minnesota–South Dakota border area

Hills, Minnesota → nearStateBorder → Minnesota–South Dakota border ⓘ

this entity surface form: South Dakota state line

Steen, Minnesota → nearestStateBorder → Minnesota–South Dakota border ⓘ

Minnesota–South Dakota border → hasName → Minnesota–South Dakota border self-link ⓘ

Minnesota–South Dakota border → hasName → Minnesota–South Dakota border self-linksurface differs ⓘ

this entity surface form: Minnesota–South Dakota state line

Iowa–Minnesota border → hasNeighboringStateBorder → Minnesota–South Dakota border ⓘ

All labels observed (6)

How this entity was disambiguated Show

Statements (42)

How these facts were elicited Show

Referenced by (9)

How this entity was disambiguated

How these facts were elicited