RV campground Ideas

For Arches we stayed at Portal RV, for Capital reef, we stayed at Thousand Lakes RV. Both were nice and had FHU

Thank y,all for all the ideas! We have a Voltage 3605 Toy hauler right at 40' long.

And, don't know if it helps or if you're looking for specific recommendations- I generally use Campendium and RVParkReviews.com for searching out parks near a destination.

For Arches/Canyonland, we stayed at Archview RV Resort and OK RV Resort. Both were full hookups and both were nice. I liked Archview better (better location, could see Arches NP) but liked OK RV Resort's prices better.

Otherwise, I'd also consider boondocking nearby.

Capital Reef: there is a good campground inside the Park.

Arches/Canyonland: While there is camping inside either park, we stayed at Horsethief Campground. a BLM park located midway between the two.

Kings Canyon: The is a campground inside the park, but you might also consider Potwisha campground at the south end of Sequoya Park, as it is easier to reach wth an RV. (Reservations are highly recommended.)

Consider taking the Adventure Caravans tour of the Great Western Parks that take the entire month of September. It covers many of the sights you mentioned.
No, I don't work for them but did take the tour several years ago.

Consider a route that also goes past Mesa Verde on the way to Arches. Really Neat. Nice campground right near the entrance.

Upper Pines in Yosemite Valley is our favorite.

Yes, we need to know about your RV to advise about Kings Canyon and Yosemite. For instance see:

https://www.nps.gov/seki/planyourvisit/vehicle-restrictions.htm

Not sure what you are traveling in so these might not be what you are looking for; we travel in a 40 foot class with toad.

We have stayed at Thousand Lakes RV near Capitol Reef, Moab Valley RV near Arches, & Escapees Park of the Sierras near Yosemite. You can either stay on the east or west side of Yosemite depending upon what time of the year.