My wife and I are planning a trip this May/16 from Hamilton, Ontario Canada to Washington, Philadelphia, Memphis, Nashville, Houston, Austin, Phoenix, Grand Canyon, Denver, up to Mount Rushmore, Kansas, St. Louis, Charleston, Canton then home. My question is after the Grand Canyon, I want to go to Santa Barbara to San Fransico then come back through Las Vegas to Denver. But my wife says there are too many mountains to go over with our 30 footer pulling a car, to do that side trip. Anyone out there know if that trip (Grand Canyon to San Francisco to Las Vegas) would be around mountains or over them? Thanks George