Max elevation: 5476 ft / 1669 m Min elevation: 2533 ft / 772 m Elevation change: 2943 ft / 897 m
Max grade: 3.7% Min grade: -4.4% Steepness score: 73 + 435 + 3430 + 11 = 3949
Distance: 339.26 mi / 545.98 km Travel Time: 4 hours 56 mins
Difficulty
% Grade
Easiest
<5%
Easy
5-10%
Moderate
10-15%
Difficult
15-20%
Very Difficult
>20%
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
steep grades. If you're planning to drive in the winter and you want to avoid snow, check the road conditions from Boise to Salt Lake City. You can also view a 3-D map of Boise elevation or Salt Lake City elevation.
Flattest Route x
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.