Lake Bonneville
E303531
Lake Bonneville was a massive prehistoric pluvial lake that once covered much of present-day Utah and surrounding areas during the last Ice Age, leaving behind features such as the Great Salt Lake and prominent shoreline terraces.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lake Bonneville canonical | 3 |
| Lake Lahontan | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2842850 — 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 Bonneville Context triple: [Grove Karl Gilbert, notableWork, Lake Bonneville]
-
A.
Utah Lake
Utah Lake is a large, shallow freshwater lake in north-central Utah that serves as a key natural and recreational feature of Utah Valley.
-
B.
Great Salt Lake
The Great Salt Lake is a large, shallow, hypersaline lake in northern Utah, known as the largest saltwater lake in the Western Hemisphere and a critical habitat for millions of migratory birds.
-
C.
Donner Lake
Donner Lake is a scenic alpine lake in the Sierra Nevada of California, known for its clear waters, recreational activities, and historical association with the Donner Party.
-
D.
Sevier Lake
Sevier Lake is a large, typically dry terminal lake in central Utah’s Great Basin, known for its fluctuating water levels and saline playa environment.
-
E.
Pyramid Lake
Pyramid Lake is a large desert lake in northwestern Nevada known for its striking pyramid-shaped tufa formations and cultural significance to the Pyramid Lake Paiute Tribe.
- 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 Bonneville Target entity description: Lake Bonneville was a massive prehistoric pluvial lake that once covered much of present-day Utah and surrounding areas during the last Ice Age, leaving behind features such as the Great Salt Lake and prominent shoreline terraces.
-
A.
Utah Lake
Utah Lake is a large, shallow freshwater lake in north-central Utah that serves as a key natural and recreational feature of Utah Valley.
-
B.
Great Salt Lake
The Great Salt Lake is a large, shallow, hypersaline lake in northern Utah, known as the largest saltwater lake in the Western Hemisphere and a critical habitat for millions of migratory birds.
-
C.
Donner Lake
Donner Lake is a scenic alpine lake in the Sierra Nevada of California, known for its clear waters, recreational activities, and historical association with the Donner Party.
-
D.
Sevier Lake
Sevier Lake is a large, typically dry terminal lake in central Utah’s Great Basin, known for its fluctuating water levels and saline playa environment.
-
E.
Pyramid Lake
Pyramid Lake is a large desert lake in northwestern Nevada known for its striking pyramid-shaped tufa formations and cultural significance to the Pyramid Lake Paiute Tribe.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
paleolake
ⓘ
prehistoric pluvial lake ⓘ |
| climateType | pluvial climate conditions ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| drainageBasin |
Great Basin
ⓘ
surface form:
Bonneville Basin
|
| drainageEvent | Bonneville flood ⓘ |
| evidenceType |
beach gravels
ⓘ
strandlines ⓘ wave-cut benches ⓘ |
| existedDuring | last Ice Age ⓘ |
| extendedInto |
Idaho
ⓘ
Nevada ⓘ |
| hydrologicSetting | endorheic basin ⓘ |
| influencedLandforms |
Bonneville Salt Flats
ⓘ
Wasatch Front ⓘ
surface form:
Wasatch Front shoreline terraces
|
| leftFeature |
Bonneville Salt Flats
ⓘ
surface form:
Bonneville shoreline
Gilbert shoreline ⓘ Provo shoreline ⓘ |
| leftRemnant |
Great Salt Lake
ⓘ
Sevier Lake ⓘ Utah Lake ⓘ |
| locatedIn |
Great Basin
ⓘ
present-day Utah ⓘ |
| maximumDepth |
approximately 1000 feet
ⓘ
approximately 300 meters ⓘ |
| maximumSurfaceArea |
approximately 20,000 square miles
ⓘ
approximately 51,000 square kilometers ⓘ |
| maximumVolume | approximately 9,500 cubic kilometers ⓘ |
| modernBasinName | Great Basin subregion: Bonneville Basin ⓘ |
| modernRemnantType |
freshwater lake (Utah Lake)
ⓘ
saline lake (Great Salt Lake) ⓘ |
| namedAfter | Benjamin Louis Eulalie de Bonneville ⓘ |
| notableEvent | catastrophic overflow and incision at Red Rock Pass ⓘ |
| outletLocation | Red Rock Pass, Idaho ⓘ |
| overflowedInto |
Columbia River
ⓘ
surface form:
Columbia River system
Snake River ⓘ |
| primaryWaterSource |
glacial meltwater
ⓘ
precipitation ⓘ |
| reasonForDesiccation |
increased evaporation
ⓘ
postglacial climate warming ⓘ reduced precipitation ⓘ |
| regionToday |
Wasatch Front urban corridor
ⓘ
surface form:
Wasatch Front metropolitan area
|
| shorelineElevation |
Bonneville shoreline about 1550 meters above sea level
ⓘ
Provo shoreline about 1460 meters above sea level ⓘ |
| studiedInDiscipline |
Quaternary geology
ⓘ
geomorphology ⓘ paleoclimatology ⓘ |
| timePeriod | Pleistocene epoch ⓘ |
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 Bonneville Description of subject: Lake Bonneville was a massive prehistoric pluvial lake that once covered much of present-day Utah and surrounding areas during the last Ice Age, leaving behind features such as the Great Salt Lake and prominent shoreline terraces.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Lake Lahontan