Bad Lands/Black Hills/ Yellowstone Vacation

I would plan about 4 days in Black Hills. I would stay in Custer State Park. Rafter J is nice but much more expensive. Spend a day doing the Wildlife Loop and driving Iron Mountain Highway in Custer State Park. Spend another day at Wall Drug and badlands National Park. Spend another day visiting Bear Country USA and the Cosmos.Then relax for a day. In Yellowstone there is so much to see. I would spend at least 4 days there. Stop at all the visitor centers. Old Faithful is a must and try to eat in The Inn at Old Faithful.The Grand Canyon of the Yellowstone is neat as is Mammoth Hot Springs.We stayed in Madison Campground.No hookups but they allow generators during certain hours.It's centrally located. If you haven't made reservations yet, you should do it NOW!