Death Valley regional hydrologic system
E484417
The Death Valley regional hydrologic system is a vast groundwater and surface-water network in the arid southwestern United States that collects, transports, and discharges water across multiple basins into the Death Valley area.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Death Valley regional groundwater flow system | 1 |
| Death Valley regional hydrologic system canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4988199 — 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: Death Valley regional hydrologic system Context triple: [Amargosa Canyon, drainageBasin, Death Valley regional hydrologic system]
-
A.
Amargosa River basin
The Amargosa River basin is an arid watershed in the Mojave Desert known for its intermittent river, unique desert ecosystems, and rare oases supporting specialized wildlife.
-
B.
Mojave River region
The Mojave River region is an area of the Mojave Desert in Southern California characterized by its intermittent river, desert ecosystems, and long-standing Indigenous presence.
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C.
Salton Trough
The Salton Trough is a tectonic depression in Southern California and northern Mexico that forms the northernmost extension of the Gulf of California rift zone.
-
D.
Tulare Basin
Tulare Basin is a large, endorheic subregion in the southern part of California’s Central Valley, historically dominated by extensive wetlands and Tulare Lake.
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E.
Pleistocene Lake Lahontan basin
The Pleistocene Lake Lahontan basin is an ancient, now mostly dry hydrologic basin in the Great Basin region of Nevada that once held a vast Ice Age lake covering much of northwestern Nevada.
- 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: Death Valley regional hydrologic system Target entity description: The Death Valley regional hydrologic system is a vast groundwater and surface-water network in the arid southwestern United States that collects, transports, and discharges water across multiple basins into the Death Valley area.
-
A.
Amargosa River basin
The Amargosa River basin is an arid watershed in the Mojave Desert known for its intermittent river, unique desert ecosystems, and rare oases supporting specialized wildlife.
-
B.
Mojave River region
The Mojave River region is an area of the Mojave Desert in Southern California characterized by its intermittent river, desert ecosystems, and long-standing Indigenous presence.
-
C.
Salton Trough
The Salton Trough is a tectonic depression in Southern California and northern Mexico that forms the northernmost extension of the Gulf of California rift zone.
-
D.
Tulare Basin
Tulare Basin is a large, endorheic subregion in the southern part of California’s Central Valley, historically dominated by extensive wetlands and Tulare Lake.
-
E.
Pleistocene Lake Lahontan basin
The Pleistocene Lake Lahontan basin is an ancient, now mostly dry hydrologic basin in the Great Basin region of Nevada that once held a vast Ice Age lake covering much of northwestern Nevada.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
groundwater flow system
ⓘ
regional hydrologic system ⓘ surface-water and groundwater system ⓘ |
| characterizedBy |
arid climate
ⓘ
closed basins ⓘ internal drainage ⓘ large depth to groundwater in many areas ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crossesPoliticalBoundary |
California
NERFINISHED
ⓘ
Nevada NERFINISHED ⓘ |
| dischargesTo |
Amargosa River
NERFINISHED
ⓘ
evaporation from playas ⓘ springs at Ash Meadows ⓘ springs in Death Valley ⓘ transpiration by phreatophytes ⓘ |
| drainsRegion |
Amargosa Desert
NERFINISHED
ⓘ
Ash Meadows area NERFINISHED ⓘ Crater Flat NERFINISHED ⓘ Death Valley area NERFINISHED ⓘ Frenchman Flat NERFINISHED ⓘ Jackass Flats NERFINISHED ⓘ Nevada Test Site vicinity ⓘ Oasis Valley NERFINISHED ⓘ Pahrump Valley NERFINISHED ⓘ Rainier Mesa area NERFINISHED ⓘ Yucca Mountain region NERFINISHED ⓘ |
| hasComponent |
ephemeral streams
ⓘ
groundwater flow ⓘ interbasin groundwater flow ⓘ playa lakes ⓘ springs ⓘ surface-water flow ⓘ |
| hasHydrologicConnectionWith |
Amargosa River basin
NERFINISHED
ⓘ
Ash Meadows groundwater basin NERFINISHED ⓘ Oasis Valley basin NERFINISHED ⓘ Pahrump Valley basin NERFINISHED ⓘ Yucca Mountain groundwater system NERFINISHED ⓘ |
| locatedIn |
Basin and Range Province
NERFINISHED
ⓘ
Great Basin region NERFINISHED ⓘ Mojave Desert region NERFINISHED ⓘ southwestern United States NERFINISHED ⓘ |
| rechargeFrom |
infiltration of streamflow
ⓘ
precipitation on surrounding mountains ⓘ snowmelt in high-elevation ranges ⓘ |
| relevantFor |
Yucca Mountain nuclear waste repository evaluations
ⓘ
contaminant transport assessment ⓘ groundwater resource management ⓘ |
| studiedBy | United States Geological Survey NERFINISHED ⓘ |
| terminatesIn |
Badwater Basin
NERFINISHED
ⓘ
Death Valley NERFINISHED ⓘ |
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: Death Valley regional hydrologic system Description of subject: The Death Valley regional hydrologic system is a vast groundwater and surface-water network in the arid southwestern United States that collects, transports, and discharges water across multiple basins into the Death Valley area.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Death Valley regional groundwater flow system