If like myself your sick of camping in the crowds at Medora try going about three miles or something like that to the south at Sully Creek campground. It's right on the Madahey tail. It has water, but no electricity or sewer. They are set up for horses. When things are slow they let you camp in the horse area, but otherwise your stuck in the tent camping area with no water except at a community faucet. Those camp sites are small, but the horse campsites are huge. You can have a 40 foot camper and a dozen tents.