Mora County's violent crime rate is the sharpest concern for visitors heading to Fort Union National Monument, with county-level data showing 795.2 violent incidents per 100,000 residents in 2023 — well above national averages. While the monument itself is a historic site with limited overnight infrastructure, the surrounding county context means travelers should stay alert, especially when stopping in nearby towns for fuel or supplies.
Plan your route so that supply runs happen during daylight hours, and avoid leaving valuables visible in your vehicle at any stop along NM-161 or in Mora. The four recorded flash flood events in the area are also worth watching: if you're day-tripping into the ruins, check the National Weather Service forecast before you go and keep an eye on dark skies building to the southwest, since the open terrain offers no shelter once a storm rolls in fast.
Top recorded hazards in Mora County
County dataFrom NOAA Storm Events (2024). Counts of recorded incidents — not all occurred at this park.
- Flash Flood 4
- Hail 1
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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.
Weather
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.