It's more of a  picnic area than campground, there are only ten sites. Large area for picnics and gatherings with campsites around two sides.
Site #1 is below the road level, but next to the long hill down to the canoe launch. This is not a direct put-in to the Wisconsin river, but into a marshy tributary. The mosquitoes are notorious. Most sites are on a short bluff over the marsh. Site #5 is the largest and nicest. #6 has a stone BBQ, but the grate is missing. #7 is possibly the most unique in the state, it has an old, restored wood burning oven. Utensils are available at the office (book ahead) and you are expected to mop it out when finished.  Pizza, bread, one pot meals, whatever you can make. the remaining sites are sloped and small.
There is a CCC pre-fab style hall available for large groups, it has a fireplace at one end and is no-frills. No Elec or flush toilets anywhere.
A total of 3+ miles of trails, up to the historic, restored shot tower with an exhibit and great views of the valley.
The whole park is up against county road C, which is not heavily trafficked, but you won't be completely away from engine noise.
This is the closest camping to Taliesen and town of Spring Green. Nearby is Peck's Farm, which has produce, Cheeses, jellies etc... and a free zoo that kids will love. The pygmy goats alone are worth a visit.