Colorado River near present-day Needles, California
E16343
The Colorado River near present-day Needles, California is a key crossing point in the Mojave Desert that historically served as a vital water source and gateway for Indigenous peoples, explorers, and overland travel routes.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Colorado River near Needles | 1 |
| Colorado River near present-day Needles, California canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T138648 — 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: Colorado River near present-day Needles, California Context triple: [Mojave Road historic route, startPoint, Colorado River near present-day Needles, California]
-
A.
Kings River (nearby)
Kings River is a major river in California’s San Joaquin Valley that flows near Fresno and is known for its role in regional agriculture, recreation, and water supply.
-
B.
Snake Valley
Snake Valley is a remote, arid basin on the Utah–Nevada border known for its desert landscapes, groundwater-dependent ecosystems, and proximity to Great Basin National Park.
-
C.
Lake Mead National Recreation Area
Lake Mead National Recreation Area is a vast protected landscape in the American Southwest centered on the reservoirs of the Colorado River, offering desert scenery, water-based recreation, and wildlife habitat.
-
D.
Great Basin
The Great Basin is a vast, arid region of interior drainage in the western United States, characterized by its basin-and-range topography, deserts, and salt flats.
-
E.
Owens Valley
Owens Valley is a long, arid valley in eastern California, lying between the Sierra Nevada and the White/Inyo Mountains and known for its dramatic scenery and historic water diversions to Los Angeles.
- 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: Colorado River near present-day Needles, California Target entity description: The Colorado River near present-day Needles, California is a key crossing point in the Mojave Desert that historically served as a vital water source and gateway for Indigenous peoples, explorers, and overland travel routes.
-
A.
Kings River (nearby)
Kings River is a major river in California’s San Joaquin Valley that flows near Fresno and is known for its role in regional agriculture, recreation, and water supply.
-
B.
Snake Valley
Snake Valley is a remote, arid basin on the Utah–Nevada border known for its desert landscapes, groundwater-dependent ecosystems, and proximity to Great Basin National Park.
-
C.
Lake Mead National Recreation Area
Lake Mead National Recreation Area is a vast protected landscape in the American Southwest centered on the reservoirs of the Colorado River, offering desert scenery, water-based recreation, and wildlife habitat.
-
D.
Great Basin
The Great Basin is a vast, arid region of interior drainage in the western United States, characterized by its basin-and-range topography, deserts, and salt flats.
-
E.
Owens Valley
Owens Valley is a long, arid valley in eastern California, lying between the Sierra Nevada and the White/Inyo Mountains and known for its dramatic scenery and historic water diversions to Los Angeles.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | river reach ⓘ |
| country | United States of America ⓘ |
| culturalSignificance | traditional homeland area for Indigenous communities along the lower Colorado River ⓘ |
| downstreamOf |
Hoover Dam
ⓘ
Lake Mohave ⓘ |
| ecosystem | riparian corridor in desert environment ⓘ |
| environment | arid desert climate ⓘ |
| feature | perennial surface water in a desert region ⓘ |
| flowsThrough |
California, United States
ⓘ
surface form:
California
|
| formsBorderBetween |
Arizona
ⓘ
California, United States ⓘ
surface form:
California
|
| hasCharacteristic |
channelized and managed by upstream dams
ⓘ
narrow floodplain in many segments ⓘ subject to seasonal flow variation ⓘ |
| historicalRole |
gateway for Indigenous peoples
ⓘ
gateway for explorers ⓘ gateway for overland travel routes ⓘ key crossing point in the Mojave Desert ⓘ vital water source for travelers ⓘ |
| hydrologicalBasin |
Lower Colorado River region
ⓘ
surface form:
Lower Colorado River Basin
|
| importance | strategic watering and rest point on desert crossings ⓘ |
| locatedIn |
Mojave Desert
ⓘ
San Bernardino County ⓘ
surface form:
San Bernardino County, California
|
| locatedNear | Needles, California ⓘ |
| nearbyInfrastructure |
Burlington Northern Santa Fe Railway main line
ⓘ
Interstate 40 ⓘ |
| nearbySettlement | Needles, California ⓘ |
| partOf | Colorado River ⓘ |
| region |
southwestern United States
ⓘ
surface form:
American Southwest
|
| supports |
riverine vegetation in Mojave Desert
ⓘ
wildlife dependent on riparian habitat ⓘ |
| transportHistory | served steamboat navigation on the lower Colorado River in the 19th century ⓘ |
| traversedBy |
historic overland trails
ⓘ
wagon routes across the Mojave Desert ⓘ |
| upstreamOf |
Lake Havasu
ⓘ
Parker Dam ⓘ |
| usedBy |
Colorado River Indian Tribes
ⓘ
surface form:
Indigenous peoples of the lower Colorado River region
Mojave people ⓘ explorers ⓘ freight and stage routes ⓘ overland migrants ⓘ railroad survey parties ⓘ |
| usedFor |
boating
ⓘ
fishing ⓘ irrigation water supply ⓘ recreation ⓘ |
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: Colorado River near present-day Needles, California Description of subject: The Colorado River near present-day Needles, California is a key crossing point in the Mojave Desert that historically served as a vital water source and gateway for Indigenous peoples, explorers, and overland travel routes.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
Burlington Northern Santa Fe Railway main line
→
crosses
→
Colorado River near present-day Needles, California
ⓘ
this entity surface form:
Colorado River near Needles