Location: US-85 and SD-20, Harding Cty
Just after we head out of Buffalo, SD-20 will split.
Location: US-85 and SD-20, Harding Cty
Follow 20 east to Bison. Stay on 85 south for Belle Fourche.
Location: US-85 and SD-20, Harding Cty
Turn left for 20 east. Stay straight for 85 south.
E to SD-79, W to MT S-328/MT State Line
N to ND State Line, S to SD-168
N to SD-20, S to SD-168
N to ND State Line, S to SD-20
