Altamont Pass
E57712
Altamont Pass is a low mountain pass in the Diablo Range of Northern California, known as a major transportation corridor and one of the earliest large-scale wind farm sites in the United States.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Altamont Pass canonical | 9 |
| Altamont Corridor | 1 |
| Altamont Pass Wind Farm | 1 |
| Altamont Pass Wind Resource Area | 1 |
| Altamont Pass wind farm | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T458808 — 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: Altamont Pass Context triple: [Altamont Corridor Express, passesThrough, Altamont Pass]
-
A.
Ebbetts Pass
Ebbetts Pass is a high mountain pass in California’s Sierra Nevada, known for its scenic, winding route and historic role as a trans-Sierra crossing.
-
B.
Vails Gate
Vails Gate is a small hamlet in New York State known primarily as a residential community within a larger town jurisdiction.
-
C.
Warner Valley
Warner Valley is a geothermal area in northeastern California known for its hot springs, mud pots, and hiking trails within Lassen Volcanic National Park.
-
D.
Mineral King
Mineral King is a remote alpine valley in California’s Sierra Nevada renowned for its rugged mountain scenery, hiking trails, and historic mining sites.
-
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: Altamont Pass Target entity description: Altamont Pass is a low mountain pass in the Diablo Range of Northern California, known as a major transportation corridor and one of the earliest large-scale wind farm sites in the United States.
-
A.
Ebbetts Pass
Ebbetts Pass is a high mountain pass in California’s Sierra Nevada, known for its scenic, winding route and historic role as a trans-Sierra crossing.
-
B.
Vails Gate
Vails Gate is a small hamlet in New York State known primarily as a residential community within a larger town jurisdiction.
-
C.
Warner Valley
Warner Valley is a geothermal area in northeastern California known for its hot springs, mud pots, and hiking trails within Lassen Volcanic National Park.
-
D.
Mineral King
Mineral King is a remote alpine valley in California’s Sierra Nevada renowned for its rugged mountain scenery, hiking trails, and historic mining sites.
-
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 (47)
| Predicate | Object |
|---|---|
| instanceOf |
mountain pass
ⓘ
transportation corridor ⓘ wind farm area ⓘ |
| climate | semi-arid Mediterranean ⓘ |
| connects |
Livermore Valley
ⓘ
San Joaquin Valley ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| elevation |
approximately 1,009 feet
ⓘ
approximately 308 meters ⓘ |
| energyType | wind power ⓘ |
| gridConnection | connected to California electrical grid ⓘ |
| hasEnergyInfrastructure |
Altamont Pass
self-linksurface differs
ⓘ
surface form:
Altamont Pass Wind Farm
|
| hasEnvironmentalIssue | bird and raptor mortality from wind turbines ⓘ |
| hasFeature |
rolling grassy hills
ⓘ
strong prevailing winds ⓘ |
| hasViewOf |
Livermore Valley
ⓘ
San Joaquin Valley ⓘ
surface form:
San Joaquin Valley plains
|
| historicalName | Livermore Pass ⓘ |
| importance | one of the main east–west passes in the Diablo Range ⓘ |
| isOnRoute | historic Lincoln Highway corridor vicinity ⓘ |
| knownFor |
being one of the earliest large-scale wind farm sites in the United States
ⓘ
large concentration of wind turbines ⓘ major transportation corridor between the Bay Area and Central Valley ⓘ |
| landUse | mix of grazing land and energy infrastructure ⓘ |
| locatedIn |
Alameda County
ⓘ
surface form:
Alameda County, California
Diablo Range ⓘ Northern California ⓘ |
| near |
Livermore
ⓘ
surface form:
city of Livermore
community of Altamont ⓘ |
| partOf |
Altamont Pass
self-linksurface differs
ⓘ
surface form:
Altamont Pass Wind Resource Area
East Bay ⓘ
surface form:
East Bay region of the San Francisco Bay Area
|
| range |
Diablo Range
ⓘ
surface form:
Diablo Range subregion
|
| region | Tri-Valley area vicinity ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| topography | low, rounded hills rather than steep mountains ⓘ |
| transportModes |
commuter rail
ⓘ
freight rail ⓘ highway traffic ⓘ |
| transportRole | key link between San Francisco Bay Area and Central Valley ⓘ |
| traversedBy |
Altamont Corridor Express
ⓘ
surface form:
Altamont Corridor Express rail line
Interstate 580 ⓘ Union Pacific Railroad ⓘ |
| usedSince | 19th century for overland travel ⓘ |
| windDevelopmentBegan | early 1980s ⓘ |
| windFarmModernization | repowering with fewer, larger turbines ⓘ |
| windPattern | strong westerly winds funneled through the pass ⓘ |
| windResourceQuality | high average wind speeds suitable for utility-scale wind power ⓘ |
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: Altamont Pass Description of subject: Altamont Pass is a low mountain pass in the Diablo Range of Northern California, known as a major transportation corridor and one of the earliest large-scale wind farm sites in the United States.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Altamont Corridor Express
subject surface form:
Altamont Corridor Express
this entity surface form:
Altamont Corridor
this entity surface form:
Altamont Pass Wind Resource Area
this entity surface form:
Altamont Pass Wind Farm
this entity surface form:
Altamont Pass wind farm