ARIZONA-UTAH-IDAHO-MONTANA-WYOMING-COLORADO TRIP...NEED HELP

Hey Guys, hoping some of you who have experience going through these states can offer some advice.

Maybe there's thats unique spot, bad ass hike, nice hot springs, caves. Im basically down to explore anything.

Im rocking a 07' PreRunner, so 4x4 trails that are heavy duty wont be on my list, but im down to go off the beaten path to visit unique spots.

Im interested in camping at free sites, and came across https://freecampsites.net/ . I am only using this a reference point in getting ideas where to camp for free.

Since I only have 2 Weeks, and i've visited some cool spots both in AZ, and UTAH (Zion ntl pk), i think im more inclined to see what Idaho, Montana, and Wyoming have to offer.... of course there is Grand Tetons, Glacier Ntl Pk, Yellowstone, etc.... but im interested in getting off the beaten path... as i desire the less crowded places...

Shoot me some cool places I should definitely stop by (caves,hot springs, hikes), including food/breweries! Appreciate it TW family - Jake