Three Flags RV Park

We stayed here for a couple of nights. Great location right off the highway. Big rig friendly. Pet friendly. We did not use any of the amenities during our stay. Was able to leave our rig while we explored Mt Rushmore and the town of Keystone. It does have a train that comes through right in front of the campground, but it is during the day and not that loud.

Booked for 1 week. Perfect place for day trips to Mt Rushmore, Custer State Park. Had full hookups and 50 amp service. We had great weather until the the last 3 days and decided to leave one day early. The bathrooms were spotless with very hot water for showers. The owner was wonderful. We left in the rain and forgot a water hose. She called us and even met us at the next exit to return it. Great stay and level lots. Thanks for everything.

It's very good for an overnight. It's close to the highway so there's a muted sound of the road, but not bad. The campground has very clean bathrooms and showers are hot. We came in late and had a site reserved for us but there was someone else there. So we just pulled in to another spot instead and spent the night.