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Establishment of Fort Buchanan
- When
- 17 November 1856
- Where
- Sonoita River, New Mexico Territory
The US Army established Fort Buchanan on the Sonoita River in November 1856 to control Gadsden Purchase lands.
Fort Buchanan was founded on November 17, 1856, on the east slope of Hog Canyon, three miles southwest of present-day Sonoita. The post was established to help control the new land acquired in the Gadsden Purchase, which had been under Army control since 1854.
Sources
- Gadsden Purchase Wikipedia
- Fort Buchanan, Arizona Wikipedia, revision of 2026-07-19
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.