Rather good down gradient going into Deadwood from the north, and headed out of town is a good climb out. Was touring in a rental car, the MH stayed in Spearfish City Campground. Use regular precautions going down the grade, gearing down, etc.
I would not even consider going around thru RC.
Charles
'03 Ram 2500 CTD, 5.9HO six speed, PacBrake Exh Brake, std cab, long bed, Leer top and 2008 Bigfoot 25B21RB.. previously (both gone) 2008 Thor/Dutchman Freedom Spirit 180 & 2007 Winnebago View 23H Motorhome.