Photo #22862 - Junction of highway # 14a East to the community of Stugis, South Dakota. - For highway travel east via U.S. #14a See Milebymile.com Road Map Highway Travel Guide - US highway #14a - BLACKHILLS NATIONAL FOREST - City of Deadwood to Sturgis, for driving directions The Canam Highway - Wyoming / South Dakota State Line to the North Dakota / South Dakota State Line Black Hills National Forest stretches for 1.2 million acres, offering outdoor adventure like hiking, biking and camping amidst stunning scenery. Find grassy mountain meadows, towering granite peaks, deep canyons, cascading trout streams and clear, clean lakes.