Ron & Sylvia

Michigan to Cody Wyoming to visit Yellowstone National Park.  New to FMCA and Class A DP world. We are traveling from FMCA Rally to Michigan for a visit then plan on traveling to Cody, WY in our 43 ft. Coach to visit Yellowstone National Park and other sights along the way.  Any suggestion of routes, routes to stay away from or points of interest along the way?  Plan on taking Nothrern Route from Michigan to Cody, WY and back to Nashville, TN area.

Thanks in advance for any help.