Made a similar trip last year on my bike. While out there visited the Badlands, Wall Drug, Rushmore, Crazy Horse, Devils Tower, Cody, Yellowstone, Grand Tetons, Beartooth Pass, Custers Last Stand, Spearfish Canyon. Some beautiful country out there. I can't wait to go back again. What route did you take into Cody? We took 90 all the way to just past Sheridan, WY. We picked up US 14 in Ranchester and took it across the Big Horn Mountains. Beautiful drive and no RVs like we heard US 16 was covered with.Yes it is the Badlands in South Dakota. We where there then Mt. Rushmore, Crazy Horse, Deadwood, Cody, Yellowstone and then to Cloumbus Montana to brother-in laws and then back home. 3400 Miles averaged 27.3 miles on trip.