Madison River
E445575
The Madison River is a renowned trout-fishing and whitewater river in Wyoming and Montana that forms one of the three headwaters of the Missouri River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Madison River canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4326336 — 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: Madison River Context triple: [Bozeman, Montana, United States, hasRiverNearby, Madison River]
-
A.
Cottonwood River
The Cottonwood River is a tributary of the Neosho River in central Kansas, flowing through the city of Emporia and the surrounding prairie landscape.
-
B.
Lolo River
The Lolo River is a significant river in Gabon that feeds into the larger Ogooué River system.
-
C.
Necanicum River
The Necanicum River is a coastal river in northwestern Oregon that flows through Clatsop County to the Pacific Ocean near the city of Seaside.
-
D.
Gallatin River
The Gallatin River is a scenic, fast-flowing tributary of the Missouri River in southwestern Montana, renowned for its blue-ribbon trout fishing, whitewater rafting, and picturesque canyon landscapes.
-
E.
Kootenai River
The Kootenai River is a major river in the Pacific Northwest of North America that flows through British Columbia, Montana, and Idaho before joining the Columbia River.
- 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: Madison River Target entity description: The Madison River is a renowned trout-fishing and whitewater river in Wyoming and Montana that forms one of the three headwaters of the Missouri River.
-
A.
Cottonwood River
The Cottonwood River is a tributary of the Neosho River in central Kansas, flowing through the city of Emporia and the surrounding prairie landscape.
-
B.
Lolo River
The Lolo River is a significant river in Gabon that feeds into the larger Ogooué River system.
-
C.
Necanicum River
The Necanicum River is a coastal river in northwestern Oregon that flows through Clatsop County to the Pacific Ocean near the city of Seaside.
-
D.
Gallatin River
The Gallatin River is a scenic, fast-flowing tributary of the Missouri River in southwestern Montana, renowned for its blue-ribbon trout fishing, whitewater rafting, and picturesque canyon landscapes.
-
E.
Kootenai River
The Kootenai River is a major river in the Pacific Northwest of North America that flows through British Columbia, Montana, and Idaho before joining the Columbia River.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| associatedEvent | 1959 Hebgen Lake earthquake NERFINISHED ⓘ |
| confluenceLocation | near Madison Junction, Yellowstone National Park ⓘ |
| continent | North America ⓘ |
| country | United States of America ⓘ |
| crosses | Hebgen Lake NERFINISHED ⓘ |
| drainageBasin | Missouri River basin NERFINISHED ⓘ |
| fishSpecies |
brown trout
ⓘ
mountain whitefish ⓘ rainbow trout ⓘ |
| flowsThrough |
Gallatin County, Montana
NERFINISHED
ⓘ
Madison County, Montana NERFINISHED ⓘ Yellowstone National Park NERFINISHED ⓘ |
| formedByConfluenceOf |
Firehole River
NERFINISHED
ⓘ
Gibbon River NERFINISHED ⓘ |
| geologicalFeatureNearby | Madison Canyon NERFINISHED ⓘ |
| hasProtectedArea | Madison River Canyon Earthquake Area NERFINISHED ⓘ |
| hasRegulation | special fishing regulations in sections ⓘ |
| hasWhitewaterSection | Bear Trap Canyon NERFINISHED ⓘ |
| headwaterOf | Missouri River NERFINISHED ⓘ |
| impoundedBy |
Hebgen Dam
NERFINISHED
ⓘ
Madison Dam NERFINISHED ⓘ |
| joinsWith |
Gallatin River
NERFINISHED
ⓘ
Jefferson River NERFINISHED ⓘ |
| knownFor |
fly fishing
ⓘ
trout fishing ⓘ whitewater rafting ⓘ |
| length |
approximately 113 miles
ⓘ
approximately 183 km ⓘ |
| locatedIn |
Montana
NERFINISHED
ⓘ
Wyoming ⓘ |
| mouthLocation | Three Forks, Montana NERFINISHED ⓘ |
| namedAfter | James Madison NERFINISHED ⓘ |
| namedForPosition | fourth President of the United States ⓘ |
| partOf |
Missouri River watershed
NERFINISHED
ⓘ
Three Forks of the Missouri NERFINISHED ⓘ |
| passesNear |
Ennis, Montana
NERFINISHED
ⓘ
West Yellowstone, Montana NERFINISHED ⓘ |
| recreation |
boating
ⓘ
camping ⓘ wildlife viewing ⓘ |
| sourceLocation | Yellowstone National Park NERFINISHED ⓘ |
| stateBorderRegion | Wyoming–Montana region NERFINISHED ⓘ |
| tributaryOf | Missouri River NERFINISHED ⓘ |
| watercourseType | freestone and tailwater river ⓘ |
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.
Instruction
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.
Input
Subject: Madison River Description of subject: The Madison River is a renowned trout-fishing and whitewater river in Wyoming and Montana that forms one of the three headwaters of the Missouri River.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Western Montana