Panorama of Officers Row

National Monument · New Mexico

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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Things to do

  • Guided Tours
  • Self-Guided Tours - Walking
  • Living History
  • Historic Weapons Demonstration
  • Junior Ranger Program
  • Shopping
  • Bookstore and Park Store

Weather & when to go

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.

Operating hours

Fort Union National Monument Operating Hours

The monument grounds and visitor center are generally open 7 days a week, from 8:00 AM - 4:00 PM. The monument is closed Thanksgiving Day, Christmas Day, New Year's Day.

FAQ

Is Fort Union National Monument free to visit?
Fort Union National Monument does not charge a standard entrance fee. Check the official NPS page for the latest details on any activity or permit fees before you go.
What are the hours at Fort Union National Monument?
The monument grounds and visitor center are generally open 7 days a week, from 8:00 AM - 4:00 PM. The monument is closed Thanksgiving Day, Christmas Day, New Year's Day.
Do I need a reservation for Fort Union National Monument?
No timed-entry reservation is currently required to enter Fort Union National Monument. Campgrounds and permits may still need to be booked separately on Recreation.gov.