We just returned from a week at Blue Bell campground in Custer State Park. It was a great experience and I highly recommend it to anyone. A few thoughts: 1 it is the farthest campground in park. Almost extra 30 minutes over the mountain. 2. Very quiet park with great facilities and cabins as well. 3. We saw more 5th wheel units than pop ups. 4. Sites are tar but not the most level. We needed BAL and didn't own one. 5. Good shade, pretty private and large sized and spaced sites. 6. Showers were very clean and host is very friendly. 7. Be prepared for temperature to be at least 10 degrees cooler up at this elevation rawer than the other sites like Game Lodge and Coolidge. We were site 21. Inside facing, but with kids we like being within 50 yards of shower house. We would return here but will try Game Lodge next as it is on bike trail and playground for kids.