An additional 36 miles of hiking trails explore the 35,000-acre Norbeck Wildlife Preserve. It's a tract set aside for the protection of game animals and birds. Located off Alt. U.S. 16 west and south of Mount Rushmore. The 10-mile Lake Loop Trail circles Deerfield Reservoir, N.W. of Hill City, off Forest Rd 17.
Open prairie lies to the north of the lake, while tall pines shade the trail south of the lake.
The 18-mile Deerfield Trail descends east from Deerfield Reservoir through scenic canyons and ascends to meet the Centennial Trail about a mile north of Pactola Reservoir, near U.S. 385. These two new trails are easy to moderately difficult with an elevation ranging from 4,600-6,000 feet. A 111-mile hiking trail stretching the length of the Black Hills in western South Dakota. Different trail segments are open to horseback riders, mountain bikers and ATV users. The terrain varies from prairie grasslands in the north to the rugged, forested Black Hills along the middle and grassland valleys in the south.