Our family (me, my wife, and our five kids - ages 4-14) will be flying to Denver this fall, and renting a class c for two weeks. Our tentative plan is to head north to Mt. Rushmore, then south to the Grand Canyon, then back to Denver... with other stops in between. Any advice for 1) routes, 2) campgrounds, 3) places to see, and 4) other traveling/planning would be appreciated. Thanks!