Port of Duluth-Superior

E73620

Great Lakes port inland port port seaport

The Port of Duluth-Superior is a major Great Lakes and inland seaport complex handling bulk cargoes such as iron ore, coal, and grain, serving as a key transportation hub for the Upper Midwest.

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All labels observed (12)

Label	Occurrences
Duluth harbor	6
Port of Duluth–Superior	6
Duluth Harbor	3
Duluth Seaway Port Authority	3
Duluth–Superior harbor	2
Duluth–Superior port	2
Port of Duluth-Superior canonical	2
Port of Superior	2
Duluth-Superior harbor	1
Duluth-Superior port facilities	1
Duluth–Superior harbor area	1
Duluth–Superior port terminals	1

How this entity was disambiguated

This entity first appeared as the object of triple T587272 — 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: Port of Duluth-Superior
Context triple: [Duluth, hasPort, Port of Duluth-Superior]

A. Port of Marquette
The Port of Marquette is a commercial harbor on Lake Superior that serves as a key shipping point for bulk commodities in Michigan’s Upper Peninsula.
B. Port of Seattle
The Port of Seattle is a major Pacific Northwest seaport and aviation hub that manages cargo and cruise terminals as well as Seattle–Tacoma International Airport.
C. Port of Rochester
The Port of Rochester is a commercial and recreational harbor facility in Rochester, New York, serving as a key waterfront access point on Lake Ontario.
D. Port of Portland
The Port of Portland is a major Pacific Northwest seaport and transportation hub in Oregon that handles international maritime trade, cargo, and regional logistics.
E. Port of Tacoma
The Port of Tacoma is a major deep-water seaport in Washington State that serves as a key hub for international container shipping and trade in the Pacific Northwest.
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: Port of Duluth-Superior
Target entity description: The Port of Duluth-Superior is a major Great Lakes and inland seaport complex handling bulk cargoes such as iron ore, coal, and grain, serving as a key transportation hub for the Upper Midwest.

A. Port of Marquette
The Port of Marquette is a commercial harbor on Lake Superior that serves as a key shipping point for bulk commodities in Michigan’s Upper Peninsula.
B. Port of Seattle
The Port of Seattle is a major Pacific Northwest seaport and aviation hub that manages cargo and cruise terminals as well as Seattle–Tacoma International Airport.
C. Port of Rochester
The Port of Rochester is a commercial and recreational harbor facility in Rochester, New York, serving as a key waterfront access point on Lake Ontario.
D. Port of Portland
The Port of Portland is a major Pacific Northwest seaport and transportation hub in Oregon that handles international maritime trade, cargo, and regional logistics.
E. Port of Tacoma
The Port of Tacoma is a major deep-water seaport in Washington State that serves as a key hub for international container shipping and trade in the Pacific Northwest.
F. None of above. chosen

Statements (47)

Predicate	Object
instanceOf	Great Lakes port ⓘ inland port ⓘ port ⓘ seaport ⓘ
borderStraddles	Minnesota ⓘ Wisconsin ⓘ
cityServed	Duluth ⓘ Superior ⓘ
connectedTo	Atlantic Ocean ⓘ St. Lawrence Seaway ⓘ linked to: Great Lakes–St. Lawrence system
continent	North America ⓘ
country	United States ⓘ linked to: United States of America
handlesCargoType	bulk cargo ⓘ coal ⓘ general cargo ⓘ grain ⓘ iron ore ⓘ limestone ⓘ project cargo ⓘ salt ⓘ
hasFeature	coal docks ⓘ grain elevators ⓘ multiple cargo terminals ⓘ ore docks ⓘ
hasHarborType	artificially improved harbor ⓘ natural harbor ⓘ
hasTransportMode	maritime shipping ⓘ rail transport ⓘ truck transport ⓘ
is	furthest inland seaport of the Great Lakes–St. Lawrence Seaway system ⓘ key transportation hub for the Upper Midwest ⓘ major bulk cargo port ⓘ
locatedIn	Duluth, Minnesota ⓘ linked to: Duluth Superior, Wisconsin ⓘ
locatedOnWaterbody	Lake Superior ⓘ St. Louis River ⓘ
operatedBy	Duluth Seaway Port Authority ⓘ linked to: Port of Duluth-Superior Superior port authority ⓘ
partOf	Great Lakes–St. Lawrence Seaway system ⓘ linked to: Great Lakes–St. Lawrence system
regionServed	Minnesota Iron Range ⓘ linked to: Iron Range region of Minnesota
servesRegion	U.S. Midwest ⓘ linked to: Midwestern United States Upper Midwest ⓘ linked to: Midwestern United States
supportsIndustry	agriculture ⓘ energy production ⓘ iron mining ⓘ steel industry ⓘ
waterwayTerminusOf	Great Lakes navigation system ⓘ

How these facts were elicited