In Idaho it will depend on how you come into and out of Stanley. The drive from Idaho Falls to Arco (First city ever power by atomic energy) is interesting to see, but it is desert with only the National Research Laboratory to see, but past Arco you can go to Craters of the Moon national monument which is very cool and again its desert like the moon.
If you traveled the interstate across Idaho Twin Falls is a wonder and the Perine bridge at Twin Falls is amazing to walk onto and see the Grand Canyon of the Snake River, look east and you should still be able to see the ramp used by Evil Kenivel when he tried to jump the Snake River in the 70's.
Stanley is surrounded by wilderness areas, as another said you might want to try and boondock, it is amazing at night because there is nearly no light pollution in the NFS campgrounds.
BTW my signature photo is my truck and trailer imposed in the Sawtooth Wilderness area west of Stanley.
