Rail Road Flat, California
E336398
Rail Road Flat, California is a small historic Gold Rush–era community in the Sierra Nevada foothills of Calaveras County known for its rural character and mining heritage.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Rail Road Flat, California canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3187983 — 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: Rail Road Flat, California Context triple: [Amador County, California, containsCensusDesignatedPlace, Rail Road Flat, California]
-
A.
Los Angeles Railway
Los Angeles Railway was a historic streetcar transit system that operated an extensive network of urban rail lines in Los Angeles during the first half of the 20th century.
-
B.
Sacramento Southern Railroad
The Sacramento Southern Railroad is a heritage railway in Sacramento, California, offering excursion train rides along the Sacramento River as part of the California State Railroad Museum’s operations.
-
C.
Sierra Railway of California
The Sierra Railway of California is a historic short-line railroad famed for serving the Gold Country region and for its frequent use as a filming location in Western movies and television shows.
-
D.
San Joaquín station
San Joaquín station is a stop on Santiago, Chile’s Metro system serving the Line 5 corridor in the city’s southeastern area.
-
E.
Rutherford, California
Rutherford, California is a small community in Napa Valley renowned for its premium wineries and distinctive Cabernet Sauvignon wines.
- 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: Rail Road Flat, California Target entity description: Rail Road Flat, California is a small historic Gold Rush–era community in the Sierra Nevada foothills of Calaveras County known for its rural character and mining heritage.
-
A.
Los Angeles Railway
Los Angeles Railway was a historic streetcar transit system that operated an extensive network of urban rail lines in Los Angeles during the first half of the 20th century.
-
B.
Sacramento Southern Railroad
The Sacramento Southern Railroad is a heritage railway in Sacramento, California, offering excursion train rides along the Sacramento River as part of the California State Railroad Museum’s operations.
-
C.
Sierra Railway of California
The Sierra Railway of California is a historic short-line railroad famed for serving the Gold Country region and for its frequent use as a filming location in Western movies and television shows.
-
D.
San Joaquín station
San Joaquín station is a stop on Santiago, Chile’s Metro system serving the Line 5 corridor in the city’s southeastern area.
-
E.
Rutherford, California
Rutherford, California is a small community in Napa Valley renowned for its premium wineries and distinctive Cabernet Sauvignon wines.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
census-designated place
ⓘ
unincorporated community ⓘ |
| areaCode | 209 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county |
Calaveras County
ⓘ
surface form:
Calaveras County, California
|
| elevation |
2601 feet
ⓘ
793 meters ⓘ |
| featureClass | populated place ⓘ |
| GNISFeatureID | 1659474 ⓘ |
| hasAreaLand | approximately 22 square miles ⓘ |
| hasAreaWater | 0 square miles ⓘ |
| hasClimate | Mediterranean climate ⓘ |
| hasSettlementType | rural community ⓘ |
| historicalEra | California Gold Rush ⓘ |
| isInMetropolitanArea | none ⓘ |
| isPartOf |
Calaveras County
ⓘ
surface form:
Calaveras County, California
|
| knownFor |
gold mining heritage
ⓘ
rural character ⓘ |
| locatedIn | Sierra Nevada foothills ⓘ |
| locatedInRegion | Northern California ⓘ |
| locatedInTimeZone | Pacific Time Zone ⓘ |
| namedFor | railroad flat used for hauling timber and ore ⓘ |
| population | 475 ⓘ |
| populationCensusYear | 2010 ⓘ |
| postalCode | 95248 ⓘ |
| primaryEconomicHistory | gold mining ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| UTCOffset | UTC−8 ⓘ |
| UTCOffsetDST | UTC−7 ⓘ |
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: Rail Road Flat, California Description of subject: Rail Road Flat, California is a small historic Gold Rush–era community in the Sierra Nevada foothills of Calaveras County known for its rural character and mining heritage.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.