Elevation from Houston to Jackson (Mississippi) via
Max elevation: 490 ft / 149 m Min elevation: 2 ft / 1 m Elevation change: 488 ft / 149 m
Max grade: 1.2% Min grade: -1.1% Steepness score: 2 + 116 + 494 + 14 = 626
Distance: 443.23 mi / 713.31 km Travel Time: 6 hours 34 mins
It looks like one possible route that might be flatter would be to go through New Orleans, 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