There are two campgrounds in this park - the upper one is on the prairie while the lower one is situated among trees along the river. We stayed in the lower campground in site 30. The lower campground is close to the playground and swimming pond but it rained the whole time we camped so we didn't use either.
Sites in the lower campground are fairly close together and we didn't have cell service (Verizon), which wasn't a big deal.
I brought my fat bike and bike the Bluebird and Dakota Valley trails. Both are mowed paths that go through prairie and wooded areas. The actual mountain bike trail was disappointing, it was overgrown, narrow, and hugged a high ridge.
Our site, 30, sloped away from the parking pad. You wouldn't be able to set up.chairs under your awning at this site and the picnic table sat in a low spot that got muddy after 2 straight days of rain. There is a river that runs behind the sites in this loop. Our boys played on the rocks and had a great time.
There are nearby train tracks and trains ran by several times a day, though luckily they don't blow the horn so we didn't notice them much.