Forum Discussion
bigdogger
Aug 02, 2015Explorer II
The fastest route from Rapid city to Yellowstone is take 212 from Belle Fourche to Garryowen and then pick up I-90. Going the route you are considering is more scenic, but you will have a climb over the Bighorn mountains and then another climb over Sylvan pass into Yellowstone Proper, then a pretty good descent from Mammoth into Gardiner. Taking I-90 to either Buffalo or Sheridan and then over the Bighorns into Cody and then into Gardiner is going to take 4 or 5 hours more than the route I mentioned.
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