Mexican–American War boundary surveys

E842019

United States–Mexico border survey boundary survey historical event

The Mexican–American War boundary surveys were a series of mid-19th-century expeditions that mapped and demarcated the new international border between the United States and Mexico following the war and the Treaty of Guadalupe Hidalgo.

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All labels observed (5)

Label	Occurrences
United States and Mexican Boundary Survey	2
Mexican–American War boundary surveys canonical	1
United States and Mexican Boundary Commission	1
United States–Mexico boundary commissioner	1
United States–Mexico boundary history	1

How this entity was disambiguated

This entity first appeared as the object of triple T10107416 — 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: Mexican–American War boundary surveys
Context triple: [United States Army surveyors, playedRoleIn, Mexican–American War boundary surveys]

A. Pig War
The Pig War was an 1859 border dispute between the United States and Great Britain over the San Juan Islands that is notable for having escalated from the shooting of a pig yet resulted in no human casualties.
B. Guadalupe Hidalgo
Guadalupe Hidalgo is a neighborhood in Mexico City historically notable as the site where the 1848 Treaty of Guadalupe Hidalgo was signed, ending the Mexican–American War.
C. Qualla Boundary
Qualla Boundary is a land trust in western North Carolina that serves as the primary homeland and governmental center for the Eastern Band of Cherokee Indians.
D. United States Volunteers in New Mexico Territory
The United States Volunteers in New Mexico Territory were locally raised Union military units composed largely of Hispanic and Native American soldiers who defended the territory and helped repel Confederate advances during the American Civil War.
E. Cochise–Howard peace agreement
The Cochise–Howard peace agreement was an 1872 treaty negotiated by Apache leader Cochise and U.S. Army General Oliver O. Howard that ended years of conflict and established a reservation for the Chiricahua Apache in Arizona.
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: Mexican–American War boundary surveys
Target entity description: The Mexican–American War boundary surveys were a series of mid-19th-century expeditions that mapped and demarcated the new international border between the United States and Mexico following the war and the Treaty of Guadalupe Hidalgo.

A. Pig War
The Pig War was an 1859 border dispute between the United States and Great Britain over the San Juan Islands that is notable for having escalated from the shooting of a pig yet resulted in no human casualties.
B. Guadalupe Hidalgo
Guadalupe Hidalgo is a neighborhood in Mexico City historically notable as the site where the 1848 Treaty of Guadalupe Hidalgo was signed, ending the Mexican–American War.
C. Qualla Boundary
Qualla Boundary is a land trust in western North Carolina that serves as the primary homeland and governmental center for the Eastern Band of Cherokee Indians.
D. United States Volunteers in New Mexico Territory
The United States Volunteers in New Mexico Territory were locally raised Union military units composed largely of Hispanic and Native American soldiers who defended the territory and helped repel Confederate advances during the American Civil War.
E. Cochise–Howard peace agreement
The Cochise–Howard peace agreement was an 1872 treaty negotiated by Apache leader Cochise and U.S. Army General Oliver O. Howard that ended years of conflict and established a reservation for the Chiricahua Apache in Arizona.
F. None of above. chosen

Statements (46)

Predicate	Object
instanceOf	United States–Mexico border survey ⓘ boundary survey ⓘ historical event ⓘ
appliesToPart	California–Baja California boundary ⓘ linked to: U.S.–Mexico border Gila River ⓘ New Mexico–Chihuahua boundary ⓘ Rio Grande ⓘ Texas–Coahuila boundary ⓘ
basedOn	Treaty of Guadalupe Hidalgo ⓘ
conflictContext	Mexican–American War ⓘ
countryInvolved	Mexico ⓘ United States of America ⓘ
endTime	1850s ⓘ
fieldOfWork	cartography ⓘ geodesy ⓘ international law ⓘ
followedBy	Gadsden Purchase boundary surveys ⓘ
follows	Mexican–American War ⓘ Treaty of Guadalupe Hidalgo ⓘ
hasEffect	clarification of the U.S.–Mexico international border ⓘ creation of official boundary maps ⓘ establishment of physical boundary markers ⓘ
hasPart	United States and Mexican Boundary Commission ⓘ linked to: Mexican–American War boundary surveys field survey expeditions ⓘ
languageOfWork	English ⓘ Spanish ⓘ
legalBasis	Treaty of Guadalupe Hidalgo Article V ⓘ linked to: Treaty of Guadalupe Hidalgo Treaty of Guadalupe Hidalgo Article VI ⓘ linked to: Treaty of Guadalupe Hidalgo
location	Northern Mexico ⓘ Southwestern United States ⓘ linked to: southwestern United States United States–Mexico border ⓘ linked to: U.S.–Mexico border
participant	Mexican boundary commissioners ⓘ U.S. boundary commissioners ⓘ
partOf	aftermath of the Mexican–American War ⓘ history of the United States–Mexico border ⓘ
purpose	demarcate the new international boundary between the United States and Mexico ⓘ map the new international boundary between the United States and Mexico ⓘ
result	detailed border maps deposited with both governments ⓘ official boundary survey reports ⓘ
significantEvent	placement of boundary monuments along the Rio Grande ⓘ survey of the land boundary from the Rio Grande to the Pacific Ocean ⓘ
startTime	1849 ⓘ
timePeriod	mid-19th century ⓘ
used	astronomical observations ⓘ topographic mapping ⓘ triangulation methods ⓘ

How these facts were elicited