To access the Colorado National Monument from the east, drive west on Highway I-70 to the town of Grand Junction. Take Exit 31 at Horizon Drive and follow signage directing you to the Colorado National Monument east entrance. From the east entrance, the visitor center and Saddlehorn campground are 19 miles on the access road which is paved.
If you are approaching from the west, take the I-70 to Exit 19 at Fruita and go south three miles on Highway 340 to the west entrance. The visitor centre and campground are four miles from the west entrance.
The road through the park has sheer cliffs beside the road. If this makes you uneasy while hauling a trailer or driving an RV, approach the west entrance so that you will be using the inside lane to approach the campground, next to the hillside, and away from the steep drop. Likewise, exit via the east entrance to avoid driving next to the steep drops.
The Rim Rock Drive has tunnels and motorists are required to keep their lights on when traversing these tunnels. Check height allowances, and be aware of your RV's height, including any items such as boats and bicycles stored on top of your RV which could be affected. Also, check conditions as some roads in the park may occasionally be closed due to poor conditions, rock, or mud slides.