hokiday from UK 2019 I drove across Canada from Vancouver to Montreal, via Yellowstone, Glacier national park and Chicago.

I've driven all the east and west coasts of USA

LOVE LOVE LOVE Roadtrippin. Have the lower 48 and western Canada pretty well covered except for the deep south. Love the CA, OR, WA Coastal Routes!!!

My most common travel points are between Southern California and Northern Colorado. Not the fastest but certainly a favorite route starts out the same. Hwy 15 out of CA into NV going right through Vegas (kind of over it). You snip a corner of AZ then into Utah.

Instead of the standard 15 to 70 route, take a right at St. George UT (taking 9 to 89). With minor adjustments along 89 one can seen The North Rim of Grand Canyon, Zion NP, Bryce NP, Arches NP and several other forest reserves within 1 day.