Planning trip from Salt Lake City Utah to Mt Rushmore what is a RV friendly route? Wife doesn't like switch backs in motor home. Some curves are ok but nothing drastic.
from salt lake city: east on I 80 to Sidney NE. 385 north to Custer, SD. or continue north on 385 to Hill City, SD, a bit closer to Rushmore. Alternate route: I 80 to Cheyenne, north on I 25 to 85, then north to Newcastle then east on 16 to Custer, but there is one short curvy bit, a few miles.