San Ysidro Mountains
E827504
The San Ysidro Mountains are a small, rugged mountain range in southern San Diego County, California, near the U.S.–Mexico border, known for their chaparral-covered slopes and role in the region’s watershed.
All labels observed (1)
| Label | Occurrences |
|---|---|
| San Ysidro Mountains canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9767198 — 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: San Ysidro Mountains Context triple: [Otay River, sourceRegion, San Ysidro Mountains]
-
A.
San Emigdio Mountains
The San Emigdio Mountains are a rugged mountain range in Southern California forming part of the southern edge of the San Joaquin Valley and the western end of the Transverse Ranges.
-
B.
Rincon Mountains
The Rincon Mountains are a rugged mountain range in southern Arizona that form part of Saguaro National Park and rise prominently to the east of Tucson.
-
C.
Orocopia Mountains
The Orocopia Mountains are a rugged, arid mountain range in Southern California known for their desert landscapes, geological diversity, and proximity to the San Andreas Fault.
-
D.
Socorro Mountains
The Socorro Mountains are a rugged mountain range in central New Mexico known for their volcanic geology and proximity to the Rio Grande Rift.
-
E.
Raton Mountains
The Raton Mountains are a volcanic-origin mountain range in southern Colorado and northern New Mexico, forming a key segment of the Sangre de Cristo Mountains and a major geographic gateway between the Great Plains and the Rocky Mountains.
- 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: San Ysidro Mountains Target entity description: The San Ysidro Mountains are a small, rugged mountain range in southern San Diego County, California, near the U.S.–Mexico border, known for their chaparral-covered slopes and role in the region’s watershed.
-
A.
San Emigdio Mountains
The San Emigdio Mountains are a rugged mountain range in Southern California forming part of the southern edge of the San Joaquin Valley and the western end of the Transverse Ranges.
-
B.
Rincon Mountains
The Rincon Mountains are a rugged mountain range in southern Arizona that form part of Saguaro National Park and rise prominently to the east of Tucson.
-
C.
Orocopia Mountains
The Orocopia Mountains are a rugged, arid mountain range in Southern California known for their desert landscapes, geological diversity, and proximity to the San Andreas Fault.
-
D.
Socorro Mountains
The Socorro Mountains are a rugged mountain range in central New Mexico known for their volcanic geology and proximity to the Rio Grande Rift.
-
E.
Raton Mountains
The Raton Mountains are a volcanic-origin mountain range in southern Colorado and northern New Mexico, forming a key segment of the Sangre de Cristo Mountains and a major geographic gateway between the Great Plains and the Rocky Mountains.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf | mountain range ⓘ |
| administrativeRegion | State of California NERFINISHED ⓘ |
| biodiversity | habitat for chaparral species ⓘ |
| climate | Mediterranean climate ⓘ |
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| drainageTo | Pacific Ocean watershed NERFINISHED ⓘ |
| elevationType | low mountains ⓘ |
| fireRegime | periodic wildfires ⓘ |
| geology |
igneous rocks
ⓘ
metamorphic rocks ⓘ |
| hasEcosystem |
chaparral
ⓘ
coastal sage scrub ⓘ |
| hasFeature |
rocky ridges
ⓘ
steep slopes ⓘ |
| hasHydrology |
ephemeral streams
ⓘ
seasonal creeks ⓘ |
| hasLandCover |
grassland patches
ⓘ
shrubland ⓘ |
| hasTerrain | rugged ⓘ |
| hasVegetation | chaparral ⓘ |
| locatedIn |
Peninsular Ranges
NERFINISHED
ⓘ
San Diego County ⓘ
surface form:
San Diego County, California
Southern California ⓘ southern San Diego County ⓘ |
| locatedNear | U.S.–Mexico border NERFINISHED ⓘ |
| near |
Otay Mesa
NERFINISHED
ⓘ
San Ysidro, San Diego NERFINISHED ⓘ Tijuana, Baja California NERFINISHED ⓘ |
| partOf |
California Floristic Province
NERFINISHED
ⓘ
Peninsular Ranges system NERFINISHED ⓘ |
| region | border region of California ⓘ |
| roleIn | regional watershed ⓘ |
| timeZone | Pacific Time Zone ⓘ |
| usedFor |
hiking
ⓘ
outdoor recreation ⓘ |
| vegetationType | drought-tolerant shrubs ⓘ |
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: San Ysidro Mountains Description of subject: The San Ysidro Mountains are a small, rugged mountain range in southern San Diego County, California, near the U.S.–Mexico border, known for their chaparral-covered slopes and role in the region’s watershed.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.