We're driving from New Jersey to Yellowstone with stops at Badlands, Mt.Rushmore, Cody, and then into Yellowstone. From Yellowstone we will continue to Grand Teton, on our way back home we'll stop by...
We went out through ND and returned via SD last year. We really enjoyed ND esp Teddy Roosevelt Nat'l park. This is a great trip, have fun. From 80 you'd take 90/94 up through WI/MN and could stop at Wisconsin Dells. Lots to see. Lots of campgrounds out here. You can stop for the night at most rest stops out west. Originally from the East (NY,NJ).
Todd Minnesota
Cody is great,rec Absoroka RV park on edge of town less crowded. Allow a day for the trip from Cody to the East gate.