Quiet and beautiful campground. Campsites are walk in and sit back from other sites. Very nice facilities.
We were just passing through the area south of Dubuque and stayed here on a rainy night. Camping is in the Dyas unit, but there are a few trails and a butterfly garden in the Nelson unit (down the road) but no camping. The butterfly garden was suffering a bit from neglect in August.
It was a decent place to stay for a night, but sites were kinda tight, i.e. close to each other. It's still a bargain at $11/$16 for non-electric/electric sites from 5/1-9/30, and the cost is $6/$11 the rest of the year.
The standard amenities include:
fire ring and picnic table at each site
dump station and potable water
modern bathrooms (as well as pit toilets near the road to sites 11-23…not sure why you'd use these because it's not much farther to a real bathroom)
individual showers, i.e. a door to the outside at each shower
Be sure to check out the photo that shows the site map along with a video that shows each area on that map.
We camped at Bellevue last summer (Aug. 2017) & it was not at all crowded. It was a really nice campground with new shower & bathroom facilities. We had stayed there because we couldn't get a site at Maquoketa Caves State Park and ended up quite happy.