Just eight miles down state highway NM 161, off Interstate 25, it is easy to reach the Fort Union National Monument visitor center and other attractions on fully paved roads that are appropriate for RV travel. A large parking lot at the visitor center can accommodate larger RVs. Campgrounds at the local KOA, about a 30 minute drive south, or at the state campgrounds, about 1 hour west can accommodate RVs.
Traveling from Albuquerque or Santa Fe, New Mexico, take the I-25 north to exit 366 at the town of Watrous and travel eight miles north on Highway NM 161 to reach the park. From Santa Fe it is 94 miles and from Albuquerque it is 150 miles to the monument.
Traveling from Denver or Colorado Springs, Colorado or Raton, New Mexico take the I-25 south to exit 366 and head up NM 161 for eight miles. From Denver it is a 313 mile trip to the monument.
RV campers should be aware that there are no services or amenities located near the monument. The nearest service stations, restaurants, and grocery stores are located at Wagon Mound, 31 miles north or at Las Vegas, New Mexico which is 28 miles to the south, where the KOA campground is also situated.