C&O Canal
E270109
The C&O Canal is a historic 19th-century waterway and towpath along the Potomac River, now preserved as a national historical park popular for hiking, biking, and exploring early American transportation history.
All labels observed (8)
How this entity was disambiguated
This entity first appeared as the object of triple T2468371 — 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.
Target entity: C&O Canal Context triple: [Old Stone House, hasNearbyLandmark, C&O Canal]
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A.
Great Allegheny Passage
The Great Allegheny Passage is a long-distance rail-trail and popular cycling and hiking route that runs through the Appalachian region, connecting Pittsburgh, Pennsylvania to Cumberland, Maryland.
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B.
Delaware and Raritan Canal
The Delaware and Raritan Canal is a historic 19th-century waterway in central New Jersey that once served as a major transportation route and now forms the backbone of a popular linear state park and recreation corridor.
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C.
Lewes and Rehoboth Canal
The Lewes and Rehoboth Canal is a man-made waterway in Sussex County, Delaware, that connects the Delaware Bay to Rehoboth Bay and forms part of the Intracoastal Waterway.
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D.
Delaware and Hudson Canal
The Delaware and Hudson Canal was a 19th-century engineering project that transported anthracite coal from Pennsylvania to the Hudson River, playing a key role in early American industrialization and canal-era commerce.
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E.
Anacostia River
The Anacostia River is a tidal river in the Washington, D.C. area known for its historical significance, urban setting, and long-running environmental restoration efforts.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: C&O Canal Target entity description: The C&O Canal is a historic 19th-century waterway and towpath along the Potomac River, now preserved as a national historical park popular for hiking, biking, and exploring early American transportation history.
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A.
Great Allegheny Passage
The Great Allegheny Passage is a long-distance rail-trail and popular cycling and hiking route that runs through the Appalachian region, connecting Pittsburgh, Pennsylvania to Cumberland, Maryland.
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B.
Delaware and Raritan Canal
The Delaware and Raritan Canal is a historic 19th-century waterway in central New Jersey that once served as a major transportation route and now forms the backbone of a popular linear state park and recreation corridor.
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C.
Lewes and Rehoboth Canal
The Lewes and Rehoboth Canal is a man-made waterway in Sussex County, Delaware, that connects the Delaware Bay to Rehoboth Bay and forms part of the Intracoastal Waterway.
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D.
Delaware and Hudson Canal
The Delaware and Hudson Canal was a 19th-century engineering project that transported anthracite coal from Pennsylvania to the Hudson River, playing a key role in early American industrialization and canal-era commerce.
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E.
Anacostia River
The Anacostia River is a tidal river in the Washington, D.C. area known for its historical significance, urban setting, and long-running environmental restoration efforts.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
19th-century waterway
ⓘ
historic canal ⓘ historic site ⓘ recreational trail ⓘ tourist attraction ⓘ towpath ⓘ transportation infrastructure ⓘ |
| builtBy | Chesapeake and Ohio Canal Company ⓘ |
| completed | 1850 ⓘ |
| constructionBegan | 1828 ⓘ |
| currentUse |
heritage education
ⓘ
nature conservation ⓘ recreation ⓘ |
| endPoint | Cumberland, Maryland ⓘ |
| follows | Potomac River ⓘ |
| hasFeature |
aqueducts
ⓘ
culverts ⓘ lock houses ⓘ locks ⓘ stone masonry structures ⓘ |
| hasHeritageDesignation |
Chesapeake and Ohio Canal National Historical Park (across Potomac)
ⓘ
surface form:
Chesapeake and Ohio Canal National Historical Park
|
| hasPart |
C&O Canal Towpath
ⓘ
surface form:
C&O Canal towpath
|
| historicalEra | early American industrial era ⓘ |
| historicalSignificance |
example of early American canal engineering
ⓘ
part of 19th-century transportation network ⓘ |
| length | about 184.5 miles ⓘ |
| locatedIn |
District of Columbia
ⓘ
Maryland ⓘ United States of America ⓘ
surface form:
United States
|
| managingOrganization | National Park Service ⓘ |
| nearbyCity |
Cumberland, Maryland
ⓘ
Washington, D.C. ⓘ |
| officialName |
C&O Canal
self-linksurface differs
ⓘ
surface form:
Chesapeake and Ohio Canal
|
| opened | mid-19th century ⓘ |
| originalPurpose |
transportation of agricultural products
ⓘ
transportation of building materials ⓘ transportation of coal ⓘ |
| popularFor |
biking
ⓘ
birdwatching ⓘ canoeing ⓘ hiking ⓘ historical tourism ⓘ kayaking ⓘ running ⓘ |
| protectedAs | national historical park ⓘ |
| startPoint | Georgetown, Washington, D.C. ⓘ |
| status | no longer used for commercial navigation ⓘ |
| traverses |
Potomac River region
ⓘ
surface form:
Potomac River valley
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Subject: C&O Canal Description of subject: The C&O Canal is a historic 19th-century waterway and towpath along the Potomac River, now preserved as a national historical park popular for hiking, biking, and exploring early American transportation history.
Referenced by (25)
Full triples — surface form annotated when it differs from this entity's canonical label.