Fort Union National Monument is located in Mora County near the city of Watrous and preserves the historic Fort Union, which was constructed in 1851 as the second of three forts that stood in the region.

Ruins of the third fort are also preserved, along with a network of ruts from the Cimarron and Mountain portions of the former Santa Fe Trail.

The National Monument, which was established in 1954, offers a visitor center with museum exhibits and a documentary film about the history of the Santa Fe Trail.

0.5 and 1.25-mile self-guided interpretive trails are available, showcasing the fort’s adobe ruins, and park interpretive programming is offered regularly, including guided talks and tours and night sky star parties.

Address: PO Box 127, Watrous, NM 87753, Phone: 505-425-8025

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