Max elevation: 5489 ft / 1673 m Min elevation: 2530 ft / 771 m Elevation change: 2959 ft / 902 m
Max grade: 3.8% Min grade: -3.9% Steepness score: 72 + 394 + 3453 + 11 = 3930
Distance: 339.25 mi / 545.98 km Travel Time: 4 hours 57 mins
It looks like one possible route that might be flatter would be to go through Idaho Falls, but make sure you double check everything if you're planning a road trip.
Elevation data comes from different sources and may not reflect true
driving conditions, so talk to other RVers if you're concerned about
These are some of the possible highways along this route. Use the GPS in your car to verify all driving directions. If you're looking for campgrounds along the way, search for RV parks between Boise and Salt Lake City.