Alum Rock Canyon
E446770
Alum Rock Canyon is a scenic natural gorge in San Jose, California, known for its rugged terrain, mineral springs, and role as the setting for Alum Rock Park, one of the state’s oldest municipal parks.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Alum Rock Canyon canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4490738 — 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: Alum Rock Canyon Context triple: [Alum Rock Park, locatedIn, Alum Rock Canyon]
-
A.
San Gabriel Canyon
San Gabriel Canyon is a scenic gorge in Southern California known for its rugged mountain landscapes, river access, and popular outdoor recreation opportunities such as hiking, fishing, and off-roading.
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B.
Malibu Canyon
Malibu Canyon is a scenic gorge in Southern California known for its rugged landscapes, hiking trails, and proximity to the Pacific Coast near Malibu.
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C.
Whittier Narrows
Whittier Narrows is a flood-control basin and recreational area in the San Gabriel Valley of Los Angeles County, known for its large dam, wetlands, and popular parks and trails.
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D.
Hanaupah Canyon
Hanaupah Canyon is a rugged desert canyon in California’s Death Valley region, carved into the Panamint Range and known for its dramatic geology and remote hiking opportunities.
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E.
Polk Gulch
Polk Gulch is a historic San Francisco neighborhood known for its vibrant nightlife and role as one of the city’s earliest LGBTQ+ communities.
- 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: Alum Rock Canyon Target entity description: Alum Rock Canyon is a scenic natural gorge in San Jose, California, known for its rugged terrain, mineral springs, and role as the setting for Alum Rock Park, one of the state’s oldest municipal parks.
-
A.
San Gabriel Canyon
San Gabriel Canyon is a scenic gorge in Southern California known for its rugged mountain landscapes, river access, and popular outdoor recreation opportunities such as hiking, fishing, and off-roading.
-
B.
Malibu Canyon
Malibu Canyon is a scenic gorge in Southern California known for its rugged landscapes, hiking trails, and proximity to the Pacific Coast near Malibu.
-
C.
Whittier Narrows
Whittier Narrows is a flood-control basin and recreational area in the San Gabriel Valley of Los Angeles County, known for its large dam, wetlands, and popular parks and trails.
-
D.
Hanaupah Canyon
Hanaupah Canyon is a rugged desert canyon in California’s Death Valley region, carved into the Panamint Range and known for its dramatic geology and remote hiking opportunities.
-
E.
Polk Gulch
Polk Gulch is a historic San Francisco neighborhood known for its vibrant nightlife and role as one of the city’s earliest LGBTQ+ communities.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
canyon
ⓘ
gorge ⓘ natural feature ⓘ |
| access |
park roads
ⓘ
trail network ⓘ |
| adjacentTo | residential areas of East San Jose ⓘ |
| climate | Mediterranean climate ⓘ |
| conservationStatus | protected within municipal park ⓘ |
| contains |
Penitencia Creek
ⓘ
mineral springs ⓘ thermal springs ⓘ |
| geology |
Franciscan Complex rocks
ⓘ
sandstone ⓘ serpentine ⓘ shale ⓘ |
| hasCharacteristic |
narrow gorge
ⓘ
rocky outcrops ⓘ rugged terrain ⓘ scenic views ⓘ steep slopes ⓘ |
| hasFeature |
bridges over Penitencia Creek
ⓘ
interpretive signs in park vicinity ⓘ picnic areas nearby ⓘ |
| hasLandUse | municipal park setting ⓘ |
| historicalUse | health resort based on mineral springs ⓘ |
| hydrologyFeatureOf | Penitencia Creek ⓘ |
| isSettingFor | Alum Rock Park ⓘ |
| locatedIn |
Alum Rock Park
ⓘ
California ⓘ
linked to:
California, United States
San Jose, California ⓘ
linked to:
San Jose
Santa Clara County, California ⓘ
linked to:
Santa Clara County
United States ⓘ
linked to:
United States of America
|
| managedBy |
City of San Jose
ⓘ
linked to:
San Jose
|
| notableFor |
early municipal park development
ⓘ
hiking ⓘ mineral springs resorts history ⓘ picnicking ⓘ recreation ⓘ wildlife viewing ⓘ |
| partOf |
Alum Rock Park historic landscape
ⓘ
linked to:
Alum Rock Park
Diablo Range foothills ⓘ
linked to:
Diablo Range
|
| recreationActivity |
nature study
ⓘ
trail running ⓘ |
| tourism |
local recreation destination
ⓘ
regional nature attraction ⓘ |
| vegetationType |
chaparral
ⓘ
oak woodland ⓘ riparian corridor ⓘ |
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: Alum Rock Canyon Description of subject: Alum Rock Canyon is a scenic natural gorge in San Jose, California, known for its rugged terrain, mineral springs, and role as the setting for Alum Rock Park, one of the state’s oldest municipal parks.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.