Mt Rushmore and Yellostone National Park

Fishing Bridge RV Campground has full hookups and is right in Yellowstone National Park. It has recently been refurbished. Make reservations now.

These are our favorites....Dennis

Rafter Bar J - South Dakota

Grizzly RV - West Yellowstone, Montana

Yellowstone area - Yellowstone Grizzly RV Park
Jackson - Fireside Resort
Mt Rushmore - Happy Holiday RV Resort
Black Hills KOA

I've stayed at each one and they are great. I wasn't trying to save money on the parking at the time.

About an hour from the park boundary? Park headquarters? “Yellowstone” isn’t an exact spot. The loop covers some of the park and is best for a first visit. The need for full hookups will severely limit your Yellowstone experience.

For Rushmore, I suggest Custer's Gulch RV park which is on the east side of Custer, close to Custer State Park. a bit pricey at $60. but well run and nice owner/operators. Or, Custer State Park itself, Game Lodge campground,but get your reservations NOW for that one.
For Yellowstone, we like staying about 15 miles south of West Yellowstone at Henry's Lake state park, very nice location, but get your reservations as soon as you can.

Coulter Bay RV Park right on Jackson lake with views of the Tetons. Very nice.

Slightly off topic but while at Yellowstone get the "Gypsy app". It is a gps based app. It tells you about upcoming areas when you are driving close to them. It sets up major attractions into a large figure 8 so that you get to see a larger part of the park more effectively.

If you travel with children the KOA at Palmer Gultch in SD is a great campground. Only bad part is limited wifi.

I agree with Rafter Bar J and the Grizzly Rv Park in W yellowstone

Two Hands wrote:
Fishing Bridge RV Campground has full hookups and is right in Yellowstone National Park. It has recently been refurbished. Make reservations now.

Fishing Bridge won't open until Sep 2021, it was delayed for Covid.

rafter J for Mt Rushmore--- I suggest you plan to be there on the first part of your trip as the whole area gets very busy around the first of August with the Sturgis Rally which has an official start date of Aug 6 this year .