We are 5 seniors planning to travel to the yellowstone area in early July. We will have 10 days. We want to see the park and maybe the Rocky Mountains or Mount Rushmore. Will we have enough time for this trip? If so, what else could we see in those areas. We are not hikers, but a mile or so would be ok for us. We like to see the natural sites and wildlife. We are from Memphis and would also like some information on where to fly into and where to stay. We will be renting a car so we would like to fly out of the same airport. Any help or suggestions would be greatly appreciated!