Myself and my girlfriend are planning to travel from Ireland and rent a car in Montana and take a road trip to Las Vegas. We are giving ourselves 15 days to do it. We plan to go to Yellowstone, Salt Lake City, Grand Canyon and Las Vegas.
We're at the very very very early stages of planning and am looking for a bit of advice. We're thinking of flying into Billings, picking up a hire car and setting off from there.
Can anyone recommend this trip, or would you do it differently. Is 15 days enough, or too long.
I know Im being very vague at this stage, but want to start planning as soon as I can
Thanks in advance