Fort Union National Monument

  • Reenactors sitting on cart at Fort Union National Monument



Fort Union Information

Fort Union was established in 1851 as a protector of the Santa Fe Trail, and during its forty-year history, three different forts were constructed in total.

The third and final Fort Union was the largest in the American Southwest, and functioned as a military garrison, territorial arsenal, and military supply depot for the southwest. Today, visitors can explore the second fort and the large, impressive ruins of the third Fort Union. The largest visible network of Santa Fe Trail ruts can be seen here.

Making an Impact

Visiting Fort Union

Soldiers holding flag at Fort Union National Monument
Cart at Fort Union National Monument

Map of the Park

Fort Union National Monument
P.O. Box 127
Watrous , NM

Parks Near Fort Union National Monument

Pecos National HIstorical Park old brick ruin structure
Pecos National Historical Park preserves Indian pueblos and Pecos cultural remains. Visitors learn about the park's ancient cultural exchange and geography.
Stone trail marker
Santa Fe National Historic Trail is a transportation route through mid-North America that connected Missouri to New Mexico, and includes scenic hiking paths.
Hiker looking across a canyon
Old Spanish National Historical Trail spans six Western states, tells history of New Mexican traders, and includes desert, mountains, and lakes landscapes.
Upward view of a ladder leading to a cliff dwelling
While known for mesas, sheer-walled canyons, and several thousand ancestral Pueblo dwellings, this monument also has over 23,000 acres of designated wilderness.
From the Blog
Support Our Parks
The protection of our national parks is a job we can all do. Our parks need the support of people like you who love and visit them.