Cimarron is located on the land of what became known as the 1,700,000 acres (6,900 km2) Maxwell Land Grant. In 1842, Lucien B. Maxwell, a fur trapper, came to the Beaubien-Miranda Ranch in northern New Mexico and courted and married Luz Beaubien, one of the owner's six daughters. He eventually inherited the ranch and built a mansion in 1858 on the future town site.
Maxwell built the Aztec Mill in 1864. It is preserved as the Old Mill Museum, operated by the Cimarron Historical Society. The museum's collection includes working mill parts; Native American tools, weapons and pottery; Maxwell Land Grant paperwork and documents; and other materials.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From Wikimedia Commons (6), the National Register of Historic Places (2), Wikipedia, Wikidata and Wikipedia for famous people and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.