Originally Posted by SeeTheUSA
Will be heading east in Wyoming from Yellowstone NP to South Dakota Black Hills, small motor home towing a small car . . .
What route would you recommend across the Bighorn Mountain Range - US Highway 14 or US Highway 16?
Thanks for your help . . .
If you're set on going through Bighorn rather than around, 16 has easier grades and a lot fewer switchbacks. There are some parts of 14 where you will drive 3-5 miles for every mile you move forward, and the turns will require slowing to 20mph or less, which means you'll do that speed the whole way up the mountain (with ordinary cars cursing you the whole way because there are few opportunities to pass, which may make them try anyway even when they shouldn't).
Take US 16, just as pretty and it won't make the passengers reach for buckets.