Lake Lewis
E424900
Lake Lewis was a vast temporary ice-age lake in the Pacific Northwest that formed repeatedly during the Missoula floods, inundating parts of present-day Washington and Oregon.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lake Lewis canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4244197 — 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: Lake Lewis Context triple: [Missoula floods, associatedWith, Lake Lewis]
-
A.
Carpenter Lagoon
Carpenter Lagoon is a notable natural and recreational waterfront area in Tampico, Mexico, known for its scenic views and local leisure activities.
-
B.
Lake Branch
Lake Branch is a western extension of Chicago's CTA Green Line rapid transit route that runs along Lake Street toward the city's West Side and suburbs.
-
C.
Lake Hunt
Lake Hunt is a small recreational lake located in or near Reidsville, North Carolina.
-
D.
Lake Ridge
Lake Ridge is a suburban community in Northern Virginia known for its residential neighborhoods, schools, and proximity to Washington, D.C.
-
E.
Whitewater Bay
Whitewater Bay is a large, shallow estuarine bay in the southwestern Everglades of Florida, known for its mangrove-lined shores and rich coastal wildlife.
- 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: Lake Lewis Target entity description: Lake Lewis was a vast temporary ice-age lake in the Pacific Northwest that formed repeatedly during the Missoula floods, inundating parts of present-day Washington and Oregon.
-
A.
Carpenter Lagoon
Carpenter Lagoon is a notable natural and recreational waterfront area in Tampico, Mexico, known for its scenic views and local leisure activities.
-
B.
Lake Branch
Lake Branch is a western extension of Chicago's CTA Green Line rapid transit route that runs along Lake Street toward the city's West Side and suburbs.
-
C.
Lake Hunt
Lake Hunt is a small recreational lake located in or near Reidsville, North Carolina.
-
D.
Lake Ridge
Lake Ridge is a suburban community in Northern Virginia known for its residential neighborhoods, schools, and proximity to Washington, D.C.
-
E.
Whitewater Bay
Whitewater Bay is a large, shallow estuarine bay in the southwestern Everglades of Florida, known for its mangrove-lined shores and rich coastal wildlife.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
prehistoric lake
ⓘ
proglacial lake ⓘ temporary lake ⓘ |
| associatedWith |
Bretz’s Missoula flood hypothesis
NERFINISHED
ⓘ
Ice Age Floods National Geologic Trail NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| drainage | Columbia River valley NERFINISHED ⓘ |
| drainageTimeScale | days to weeks ⓘ |
| emptiedThrough | Columbia River Gorge NERFINISHED ⓘ |
| evidenceObservedNear |
Pasco Basin
NERFINISHED
ⓘ
Rattlesnake Mountain NERFINISHED ⓘ Wallula Gap NERFINISHED ⓘ |
| existenceStatus | no longer existing ⓘ |
| fillingTimeScale | days to weeks ⓘ |
| formedBy |
Glacial Lake Missoula outburst floods
NERFINISHED
ⓘ
Missoula floods NERFINISHED ⓘ |
| formedDuring |
Pleistocene epoch
NERFINISHED
ⓘ
last ice age ⓘ |
| formedWhen | catastrophic floodwaters ponded behind constrictions in the Columbia River valley ⓘ |
| geologicAge | late Pleistocene ⓘ |
| inundatedRegion |
Tri-Cities region of Washington
NERFINISHED
ⓘ
Walla Walla Valley NERFINISHED ⓘ Yakima Valley NERFINISHED ⓘ north-central Oregon ⓘ south-central Washington ⓘ |
| knownFor |
large areal extent
ⓘ
rapid filling and draining ⓘ role in shaping Columbia Basin topography ⓘ |
| leftGeologicRecord |
flood deposits
ⓘ
giant current ripples ⓘ ice-rafted erratics ⓘ rhythmites ⓘ strandlines ⓘ |
| locatedIn |
Oregon
ⓘ
Pacific Northwest ⓘ Washington ⓘ
surface form:
Washington (state)
|
| maximumDepth |
approximately 250 meters
ⓘ
approximately 800 feet ⓘ |
| maximumSurfaceElevation |
about 1,200 feet above sea level
ⓘ
about 370 meters above sea level ⓘ |
| namedAfter | Meriwether Lewis NERFINISHED ⓘ |
| nameUsage | modern geologic literature ⓘ |
| partOf | Channeled Scablands flood system NERFINISHED ⓘ |
| primaryWaterSource | Glacial Lake Missoula NERFINISHED ⓘ |
| repeatedlyFormed |
dozens of times
ⓘ
during successive Missoula floods ⓘ |
| waterType | freshwater ⓘ |
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: Lake Lewis Description of subject: Lake Lewis was a vast temporary ice-age lake in the Pacific Northwest that formed repeatedly during the Missoula floods, inundating parts of present-day Washington and Oregon.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.