Ludlow, Colorado
E758535
Ludlow, Colorado is a former coal mining settlement in southern Colorado best known as the site of the 1914 Ludlow Massacre during a major coal miners' strike.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ludlow, Colorado canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8434143 — 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: Ludlow, Colorado Context triple: [Ludlow strike, locatedIn, Ludlow, Colorado]
-
A.
Crowley, Colorado
Crowley, Colorado is a small statutory town in southeastern Colorado that serves as one of the communities within rural Crowley County.
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B.
Moffat, Colorado
Moffat, Colorado is a small rural town in south-central Colorado known for its agricultural surroundings and proximity to the San Luis Valley.
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C.
Morrison, Colorado
Morrison, Colorado is a small historic town in Jefferson County best known as the gateway to Red Rocks Park and Amphitheatre and for its nearby dinosaur fossil sites.
-
D.
Silverthorne, Colorado
Silverthorne, Colorado is a mountain town in Summit County known as a gateway to several major ski resorts and outdoor recreation areas in the Colorado Rockies.
-
E.
Ridgway, Colorado
Ridgway, Colorado is a small mountain town in southwestern Colorado known for its scenic setting near the San Juan Mountains and its role as a gateway to outdoor recreation.
- 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: Ludlow, Colorado Target entity description: Ludlow, Colorado is a former coal mining settlement in southern Colorado best known as the site of the 1914 Ludlow Massacre during a major coal miners' strike.
-
A.
Crowley, Colorado
Crowley, Colorado is a small statutory town in southeastern Colorado that serves as one of the communities within rural Crowley County.
-
B.
Moffat, Colorado
Moffat, Colorado is a small rural town in south-central Colorado known for its agricultural surroundings and proximity to the San Luis Valley.
-
C.
Morrison, Colorado
Morrison, Colorado is a small historic town in Jefferson County best known as the gateway to Red Rocks Park and Amphitheatre and for its nearby dinosaur fossil sites.
-
D.
Silverthorne, Colorado
Silverthorne, Colorado is a mountain town in Summit County known as a gateway to several major ski resorts and outdoor recreation areas in the Colorado Rockies.
-
E.
Ridgway, Colorado
Ridgway, Colorado is a small mountain town in southwestern Colorado known for its scenic setting near the San Juan Mountains and its role as a gateway to outdoor recreation.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
former coal mining town
ⓘ
labor conflict ⓘ mass killing ⓘ memorial ⓘ unincorporated community ⓘ |
| associatedField |
industrial relations
ⓘ
labor rights ⓘ |
| associatedWith | Rockefeller family (owners of Colorado Fuel and Iron Company) NERFINISHED ⓘ |
| category |
company town
ⓘ
ghost town in Colorado ⓘ |
| cause | coal miners' strike ⓘ |
| commemorates | Ludlow Massacre NERFINISHED ⓘ |
| country | United States of America ⓘ |
| currentUse | historic site ⓘ |
| date | 1914-04-20 ⓘ |
| elevation |
approximately 1900 meters
ⓘ
approximately 6200 feet ⓘ |
| hasEvent | Ludlow Massacre NERFINISHED ⓘ |
| hasHeritageStatus | listed as a National Historic Landmark district ⓘ |
| hasStructure | Ludlow Monument NERFINISHED ⓘ |
| heritageDesignationDate | 2009 ⓘ |
| historicalPeriod | early 20th century coal mining era ⓘ |
| historicalSignificance | site of the Ludlow Massacre ⓘ |
| impact | influenced U.S. labor law and public opinion on labor disputes ⓘ |
| involvedOrganization |
Colorado Fuel and Iron Company
NERFINISHED
ⓘ
Colorado National Guard NERFINISHED ⓘ United Mine Workers of America NERFINISHED ⓘ |
| knownFor |
Ludlow Massacre of 1914
NERFINISHED
ⓘ
coal mining history ⓘ labor history ⓘ |
| locatedIn |
Las Animas County, Colorado
NERFINISHED
ⓘ
Ludlow, Colorado NERFINISHED ⓘ Ludlow, Colorado NERFINISHED ⓘ southern Colorado ⓘ |
| locatedInTimeZone | Mountain Time Zone ⓘ |
| maintainedBy | United Mine Workers of America NERFINISHED ⓘ |
| namedAfter | Ludlow (railroad station or area name origin associated with railroad officials) ⓘ |
| near |
Interstate 25
NERFINISHED
ⓘ
Trinidad, Colorado NERFINISHED ⓘ |
| numberOfDeaths | approximately 20 ⓘ |
| partOf |
Colorado Coalfield War
NERFINISHED
ⓘ
State of Colorado NERFINISHED ⓘ |
| populationTrend | declined after coal mining era ⓘ |
| primaryIndustry | coal mining ⓘ |
| servedBy | railroad (historically associated with coal transport) ⓘ |
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: Ludlow, Colorado Description of subject: Ludlow, Colorado is a former coal mining settlement in southern Colorado best known as the site of the 1914 Ludlow Massacre during a major coal miners' strike.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.