From Sundance:
Take Highway 14 west one mile to FSR 838. Travel north on FSR 838 and 843 to FSR 842. Take FSR 842 one mile to the trailhead.
From Spearfish:
Take I-90 west to Aladdin Exit 199. Travel north four miles on Highway 111 to FSR 843. Turn to the west on FSR 843 and travel to FSR 842. Take FSR 842 one mile to the trailhead.