best route, West to East?
Headed to Illinois in July from NorCal and wondering which route would have the least grades to climb the Rockies, I-80 or I-70?
Forum Discussion
and if you want to avoid the long EB pull on I-80 east of SLC up and thru Parley's Canyon you might consider an alternate that's not nearly as steep. Go north on I-15 from I-80 to I-84. follow that east back to I-80. a bit longer but much easier. our rig was a 40' gasser towing a jeep SUV. we made it but I found that climb far more difficult than Donner Peak in CA or any of the pulls in WY.
