We were traveling northbound on 218 on a Tuesday and searched for a convenient stop for one night. It was very hot so filtered the results, showing spots with electric hook-up in order to run the AC a bit. The North Cedar County Park was easy to find, located just a couple miles off the exit and past the town of Plainfield.
The park is heavily shaded in most areas. They have done a good job of keeping the tree canopy high, so we had no worries of hitting limbs in our 34' class A that has a height of 12 feet.
The sites are all grass, with no clear definition of individual sites. We just picked a spot that looked fairly level and dry. Soft soil could be a concern for heavier rigs after rains. Our stabilizers did sink into the dirt a bit, but we were able to level.
They have wooden picnic tables scattered, as well as designated firepit areas. 30 and 15 Amp service was available on the power post. There is a bathroom/shower house, picnic shelter, playground and horseshoe courts.
The campground is right on a wide, fast moving river and offers 2 boat launches. It didnt appear that any of the sites had a water view, but it was a short, pleasant stroll to the rivers edge.
We paid $20 for our one night. It is all first come, first served. They say on their website that they have 40 sites. On a Tuesday in June, there were 3 of us there for the night (the other two looked more long-term). A posted sign said that camping is free on Wednesday nights, so that's cool!
Overall, it was a quiet and pretty place to stop and we would definately visit again.