Rushmore to Fishing Bridge - Yellowstone

evanrem wrote:
We went from Spearfish to Redlodge and camped in a national forest off the beartooth highway right before the switchbacks and spent two nights exploring the area. Backtracked out an came in on the west entrance which was very easy. There is a website that explains all the ways to get to Yellowstone with a rv which is pretty detailed.

This is one of several websites that describes the various entrances to Yellowstone and the routes to access them. From Red Lodge it is not necessary to go all the way to the South entrance. MT-308 and MT-72/WY-120 will take you South to Cody without crossing any major mountain passes. From Cody to the East Entrance and Fishing Bridge does go over a pass, but it is nothing like the Beartooth and in my recollection no more difficult than some of the other passes in the park.