Maryland–Virginia border on the Potomac River

E1229049 UNEXPLORED

The Maryland–Virginia border on the Potomac River is the historically contested interstate boundary running along the Potomac that separates Maryland from Virginia and Washington, D.C., influencing regional jurisdiction, navigation, and development.

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All labels observed (4)

Label	Occurrences
Maryland–Virginia border	3
Maryland–Virginia border on the Potomac River canonical	1
Maryland–Virginia state line	1
Potomac River boundary	1

How this entity was disambiguated

This entity first appeared as the object of triple T16690735 — 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: Maryland–Virginia border on the Potomac River
Context triple: [Jones Point Lighthouse, nearBorder, Maryland–Virginia border on the Potomac River]

A. District of Columbia–Virginia border
The District of Columbia–Virginia border is the jurisdictional boundary separating Washington, D.C. from the state of Virginia, largely defined by the Potomac River and significant for its legal, political, and infrastructural implications in the U.S. capital region.
B. District of Columbia–Maryland border
The District of Columbia–Maryland border is the boundary line separating Washington, D.C. from the state of Maryland, running through both urban and natural areas in the region.
C. Virginia–West Virginia boundary
The Virginia–West Virginia boundary is the state line that separates Virginia from its northwestern neighbor West Virginia, following a historically contested course through the Appalachian region.
D. Maryland state line
The Maryland state line is the boundary separating the state of Maryland from its neighboring states, including Pennsylvania’s Bedford County.
E. Maryland–West Virginia boundary (traditional)
The Maryland–West Virginia boundary (traditional) is the historic state line in the central Appalachian region whose course was long defined by early colonial surveys and landmarks such as the Fairfax Stone.
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: Maryland–Virginia border on the Potomac River
Target entity description: The Maryland–Virginia border on the Potomac River is the historically contested interstate boundary running along the Potomac that separates Maryland from Virginia and Washington, D.C., influencing regional jurisdiction, navigation, and development.

A. District of Columbia–Virginia border
The District of Columbia–Virginia border is the jurisdictional boundary separating Washington, D.C. from the state of Virginia, largely defined by the Potomac River and significant for its legal, political, and infrastructural implications in the U.S. capital region.
B. District of Columbia–Maryland border
The District of Columbia–Maryland border is the boundary line separating Washington, D.C. from the state of Maryland, running through both urban and natural areas in the region.
C. Virginia–West Virginia boundary
The Virginia–West Virginia boundary is the state line that separates Virginia from its northwestern neighbor West Virginia, following a historically contested course through the Appalachian region.
D. Maryland state line
The Maryland state line is the boundary separating the state of Maryland from its neighboring states, including Pennsylvania’s Bedford County.
E. Maryland–West Virginia boundary (traditional)
The Maryland–West Virginia boundary (traditional) is the historic state line in the central Appalachian region whose course was long defined by early colonial surveys and landmarks such as the Fairfax Stone.
F. None of above. chosen