Columbia River headwaters
E1218422
UNEXPLORED
The Columbia River headwaters are the high-elevation source region of the Columbia River in the Canadian Rockies, where meltwater and runoff begin the river’s long course toward the Pacific Ocean.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Columbia River headwaters canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T16516466 — 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: Columbia River headwaters Context triple: [Columbia Icefield, sourceOfRiver, Columbia River headwaters]
-
A.
Wenatchee River
The Wenatchee River is a major river in Washington State known for its scenic canyon landscapes, whitewater recreation, and role as a key tributary of the Columbia River.
-
B.
Rainier River
Rainier River is a waterway named in honor of British Royal Navy officer Peter Rainier, reflecting his historical influence in the region.
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C.
Somass River
The Somass River is a river on Vancouver Island in British Columbia, Canada, known for flowing through the Alberni Valley to the city of Port Alberni and supporting important salmon runs.
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D.
Madison River
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.
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E.
Skookumchuck River
Skookumchuck River is a river in western Washington State that flows through Thurston County and is known for its salmon habitat and recreational opportunities.
- 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: Columbia River headwaters Target entity description: The Columbia River headwaters are the high-elevation source region of the Columbia River in the Canadian Rockies, where meltwater and runoff begin the river’s long course toward the Pacific Ocean.
-
A.
Wenatchee River
The Wenatchee River is a major river in Washington State known for its scenic canyon landscapes, whitewater recreation, and role as a key tributary of the Columbia River.
-
B.
Rainier River
Rainier River is a waterway named in honor of British Royal Navy officer Peter Rainier, reflecting his historical influence in the region.
-
C.
Somass River
The Somass River is a river on Vancouver Island in British Columbia, Canada, known for flowing through the Alberni Valley to the city of Port Alberni and supporting important salmon runs.
-
D.
Madison River
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.
-
E.
Skookumchuck River
Skookumchuck River is a river in western Washington State that flows through Thurston County and is known for its salmon habitat and recreational opportunities.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.