From Rapid City, travel south on Rushmore Road (turns into Highway 16) for 13 miles, then turn northeast (right) onto Silver Mountain Road. Travel for 0.1 miles then turn north (left) onto Boulder Hill Road. Travel for 2.2 miles, the trailhead will be on the east (right) side of the road. This trailhead is located on Boulder Hill Road about halfway between Sheridan Lake Road and Highway 16. This trailhead is the closest access to Loop B and the Boulder Hill overlook.