
Fort Union National Monument
Exposed to the wind, within a sweeping valley of short grass prairie, and along the eroded Santa Fe Trail, lie the adobe walled ruins of the largest 19th century military fort in the region.
Photo: Ron Harvey - Fort Union National Monument / NPS
About Fort Union National Monument
Exposed to the wind, within a sweeping valley of short grass prairie, and along the eroded Santa Fe Trail, lie the adobe walled ruins of the largest 19th century military fort in the region. From 1851 to 1891, Fort Union functioned as an agent of change, desired or not, in the New Mexico Territory and throughout the Southwest.
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Driving times from Fort Union National Monument, one way, via road — a realistic day is 8–10 hours behind the wheel.
Hours
Fort Union National Monument Operating Hours
- Mon
- 8:00AM - 4:00PM
- Tue
- 8:00AM - 4:00PM
- Wed
- 8:00AM - 4:00PM
- Thu
- 8:00AM - 4:00PM
- Fri
- 8:00AM - 4:00PM
- Sat
- 8:00AM - 4:00PM
- Sun
- 8:00AM - 4:00PM
Activities
Getting there
Fort Union is situated at 6,760 feet above sea level. Daytime temperatures between June and September may exceed 90 degrees Fahrenheit. Winter temperatures often drop below 32 degrees Fahrenheit. Temperatures may vary within 50 degrees in a 24-hour period. During the winter, it is not uncommon for the temperatures to drop below 0°F (-18°C.) During the summer, expect high temperatures, intense sunlight and extremely low humidity.
Frequently asked questions
- What is there to do at Fort Union National Monument?
- Popular activities include Bookstore and Park Store, Guided Tours, Historic Weapons Demonstration, Junior Ranger Program, Living History, Self-Guided Tours - Walking.
- Which national parks are within a day's drive of Fort Union National Monument?
- Within about a day's drive you can reach Pecos National Historical Park (1 h 20 min), Manhattan Project National Historical Park (2 h 12 min), Capulin Volcano National Monument (2 h 13 min), Petroglyph National Monument (2 h 50 min), Bandelier National Monument (3 h 3 min), Valles Caldera National Preserve (3 h 3 min).