lower Snake River

E768656

river reach section of the Snake River

The lower Snake River is a section of the Snake River in the Pacific Northwest known for its series of large hydroelectric dams, navigation locks, and ongoing environmental and salmon conservation debates.

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All labels observed (3)

Label	Occurrences
lower Snake River canonical	2
Lower Snake River navigation channel	1
lower Snake River valley	1

How this entity was disambiguated

This entity first appeared as the object of triple T8951945 — 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: lower Snake River
Context triple: [Lower Granite Dam, locatedOnWatercourse, lower Snake River]

A. Ogden River
The Ogden River is a tributary of the Weber River in northern Utah, flowing through Ogden Canyon and the city of Ogden before joining the Weber River.
B. Lolo River
The Lolo River is a significant river in Gabon that feeds into the larger Ogooué River system.
C. Lower Tanana
Lower Tanana is an Athabaskan language of interior Alaska, closely related to Koyukon and traditionally spoken along the lower Tanana River.
D. Weiser River
The Weiser River is a river in western Idaho that flows through agricultural valleys and rugged canyons before joining the Snake River.
E. Lower Umpqua
Lower Umpqua are an Indigenous people of the central Oregon coast, traditionally speakers of a dialect of the Siuslaw language and part of the broader cultural groups of 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: lower Snake River
Target entity description: The lower Snake River is a section of the Snake River in the Pacific Northwest known for its series of large hydroelectric dams, navigation locks, and ongoing environmental and salmon conservation debates.

A. Ogden River
The Ogden River is a tributary of the Weber River in northern Utah, flowing through Ogden Canyon and the city of Ogden before joining the Weber River.
B. Lolo River
The Lolo River is a significant river in Gabon that feeds into the larger Ogooué River system.
C. Lower Tanana
Lower Tanana is an Athabaskan language of interior Alaska, closely related to Koyukon and traditionally spoken along the lower Tanana River.
D. Weiser River
The Weiser River is a river in western Idaho that flows through agricultural valleys and rugged canyons before joining the Snake River.
E. Lower Umpqua
Lower Umpqua are an Indigenous people of the central Oregon coast, traditionally speakers of a dialect of the Siuslaw language and part of the broader cultural groups of the Pacific Northwest.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	river reach ⓘ section of the Snake River ⓘ
affects	anadromous salmon populations ⓘ steelhead populations ⓘ
confluenceLocation	near Pasco, Washington ⓘ
flowsThrough	Washington State ⓘ linked to: Washington State, United States
hasControversy	dam removal debate ⓘ salmon conservation ⓘ
hasDam	Ice Harbor Dam ⓘ Little Goose Dam ⓘ Lower Granite Dam ⓘ Lower Monumental Dam ⓘ
hasEconomicRole	agricultural exports ⓘ regional energy supply ⓘ
hasFishPassageStructure	fish ladders at Ice Harbor Dam ⓘ fish ladders at Little Goose Dam ⓘ fish ladders at Lower Granite Dam ⓘ fish ladders at Lower Monumental Dam ⓘ
hasIssue	altered river flow regime ⓘ fish passage challenges at dams ⓘ water temperature impacts on fish ⓘ
hasNavigationLock	Ice Harbor Dam navigation lock ⓘ linked to: Ice Harbor Lock Little Goose Dam navigation lock ⓘ Lower Granite Dam navigation lock ⓘ linked to: Lower Granite Lock and Dam Lower Monumental Dam navigation lock ⓘ linked to: Lower Monumental Dam
hasRecreationActivity	boating ⓘ fishing ⓘ wildlife viewing ⓘ
hasStakeholder	commercial navigation interests ⓘ environmental organizations ⓘ hydropower utilities ⓘ tribal nations in the Columbia Basin ⓘ
isSubjectOf	Endangered Species Act litigation ⓘ federal environmental impact statements ⓘ regional salmon recovery plans ⓘ
locatedIn	Pacific Northwest ⓘ United States ⓘ linked to: United States of America
managedBy	U.S. Army Corps of Engineers ⓘ
near	Idaho ⓘ Oregon ⓘ
partOf	Columbia River Basin hydropower system ⓘ Snake River ⓘ
supports	grain export transportation from the interior Northwest ⓘ
tributaryOf	Columbia River ⓘ
usedFor	barge transportation ⓘ hydroelectric power generation ⓘ inland navigation ⓘ irrigation support ⓘ recreation ⓘ

How these facts were elicited

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

Lower Granite Dam → locatedOnWatercourse → lower Snake River ⓘ

Lower Monumental Dam → locatedOn → lower Snake River ⓘ

Oregon–Idaho border near Boise → riverValley → lower Snake River valley ⓘ

linked to: lower Snake River

Lower Snake River Project → waterway → Lower Snake River navigation channel ⓘ