South Boxelder Trailhead (also known as Blue Draw) provides both motorized and non-motorized access to the Centennial Trail, a National Recreation Trail. The trailhead is a gateway to dozens of miles of OHV trails as well as to some of the most scenic views on the forest. The route between South Boxelder and Pilot Knob to the south is extremely popular during the summer months, and is also one of only a few routes in the Nemo area that is open year-round. The Centennial Trail segments north and south of this trailhead are open for motorized and non-motorized use. Toilets are available further west on the road at the Boxelder Campground. Access the South Boxelder Trailhead from Rapid City take South Canyon Road west out of Rapid City for approximately 7 miles. South Canyon Road becomes Nemo Road. Travel the Nemo Road northwesterly for 11 miles to the unincorporated town of Nemo. In Nemo, turn west (left) on the Boxelder Forks Road – this is south (before) the Nemo Guest Ranch. After 0.1 mile, the road becomes National Forest System Road (NFSR) 140. Continue west on NFSR 140 for 0.6 miles to the trailhead, which is on the west (left) side of the road.