US-85 North - Belle Fourche
Entering Belle Fourche on US-85 north. Population 4,565. Belle Fourche is the county seat of Butte County, South Dakota.
US-85 North at SD-34
US-85 north at SD-34. Use SD-34 west for Heulett, WY; SD-34 east for Whitewood; US-85 north for Belle Fourche.
US-85 North Approaching SD-34
US-85 North approaching SD-34. Mile marker 54 is posted to the bottom of the marker.