Road trip planning, need route and area recommendations

I'll be driving from Montreal to Vancouver this September and I want to hit a few climbing spots.

I will likely only spend a day in each place and I will be climbing with my girlfriend who isn't keen on long approaches.

We will most likely be driving along the I-90 and plan on hitting Mt.Rushmore, Devil's Tower, Yellowstone (sightseeing only) and Jackson Hole (for mountain biking).

I'd like to squeeze Vedauwoo in there but it might be too far out...

I'm looking for easily accessed, sport or trad single pitch routes in the 5.6 to low 5.10 range. I'm open to any recommendations on areas or routes I should check out along the I-90.

I won't be looking for super hard climbs, it's mainly about getting a short feel for the rock and enjoying the locations so if you have recommendations for easy route with a great atmosphere, I'm up for it!

Thanks