Get to Moorcroft by US 16 then I-90 to Buffalo then US 16 to Cody. I did this route in reverse several years ago with my 40' motorhome with a tow. Sure, there are big hills and some sharp turns but let your exhaust or compression brake and transmission do most of your braking.
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Pete - Full Timing
2000 Country Coach Magna 40' Indulgence, CAT C10, #5892
2019 Ford Ranger XLT
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