A number of suggestions for your comnsideration:
X3 on the Buffalo Bill Historical Center if you go to Cody. Entrance tickets are good for 2 days for a reason. We stay at the Ponderosa RV Park, which is only a few blocks from the museum.
From Cody you can take the Chief Joseph Highway (route 296) to the Beartooth Highway (route 212) over the Pass and down the Red Lodge. One of the most spectacular drives in the country.
If you need to stock up before heading in the East Entrance of Yellowstone, there is a WalMart on the west side of town. There's also an Albertsons as you come into Cody from the east.
We always recommend taking the switchback trail down the the brink of the Lower Falls. It's at the first parking area on the one way North Rim Drive. Looking over the railing to watch the thundering water fall over 300 feet into the swirling spray at the bottom is unforgettable. Us old folks take a long time getting back up to the parking area, but it's worth it.
Very nice Visitor Center at Canyon.
Old Faithful is only of the many geysers and hot springs in the Upper Geyser Basin. The Visitor Center has info on the other predictable geysers so you can plan you walk around the area. Nearby Biscuit Basin and Black Sand Basin are also worthwhile.
Have lunch at the Old Faithful Inn and experience this historic structure.
Make a day trip up to the Lamar Valley in the northeast corner of the park. This valley has been Called the "Serengeti of America" and has the largest herd of Bison in the Park. It's the only place we have seen wolves, although sightings aren't a sure thing by far. If you have binoculars, or better yet a spotting scope, head further up to Baronette Peak and look for Mountain Goats and Bighorn Sheep.
A stop to see Mammoth Hot Springs is also possible after a visit to the Lamar Valley. Elk are common in the grassy area across from the Mammoth Hotel and in the Fall you may get to hear a Bull Elk with a full rack bugling to attract mates.
Colter Bay RV is the only FHU campground in Grand Teton. We always stay at Gros Ventre at the south end of the Park. There are some electric sites there as well as a a dump and water fill. No reservations at Gros Ventre, but they rarely fill and you should have your pick of sites in the Fall.
IMO the most spectacular drive in Grand Teton is southbound from Jackson lake Junction over the Jackson Lake Dam to Jenny Lake and on the Moose Junction. Morning is best for photography as the sun will be behind you when facing the mountains.
We always recommend taking the boat across Jenny Lake and hiking the trail up to Hidden Falls and Inspiration Point. If you have the time and energy, continue on into Cascade Canyon to be truly "in" the mountains.
A very nice Visitor Center at Moose and on the left across the river is Dornan's, where you can eat lunch on an upper deck overlooking the Tetons.
If you need to restock while in Grand Teton, there are two full size supermarkets on the south side of the town of Jackson, an Albertsons on the left and a Smith's on the right about 1/2 mile further on.
2003 Winnebago Minnie 24F - Ford E-450๐