Fort Abraham Lincoln State Park is located 7 miles south of Mandan, ND and across the Missouri from Bismarck. The sites are fairly large yet oddly laid out: some drive-throughs are designed to hold two units, which requires the latecomer to back in. The water spigots are randomly placed so you will need at least 50' of water hose in many cases. Park is nicely treed and the grass is in good shape. Park's visitor center/museum is excellent. We camped here in a Travel Trailer.
Our site was at the end of a loop so it was private but some others are right on top of each other. The playground was good with lots to keep kids entertained. A short walk gets you to the Trolley and the On-a-Slant-Indian Village. I was not happy with the tour of the village. We paid and then were taken to the first hut in the village where the guide talked a bit and then excused us saying if we wanted to carry on the Custer House to go ahead. I felt ripped off since we paid and really got nothing out of it. I did, however, enjoy the campsite - lots of places to walk and explore with the dog. We camped here in a Travel Trailer.
We camped here over the 4th of July weekend, a very busy time (and BIG party) in Mandan. The state park system screwed up our reservations, which we had made months before - but managed to get us into a non-electric site for a couple of nights, after which we moved to a site with electric (30 amp) and water nearby. This is a nicely shaded, historical park right on the Heart River, where it joins the Missouri River. No swimming is allowed in the river, which would be dicey in any case. Riverfront sites are non-electric only. There is a nice playground for kids, and a volley ball court. Watch out for the poison ivy! Away from the river there is a fascinating historical site, including the calvary fort (from where General Custer and his troops rode to their doom) and an amazing cemetery, plus the Mandan Indian 'slant' village. Great walking and biking trails. We had stayed here the previous May, and had the place entirely to ourselves - with no water or electric; they were shut down till 'spring', whenever that is! There was still a little snow on the ground, but even without any services we were charged to dry camp. We would definitely stay here again. We camped here in a Motorhome.