There are two campgrounds in this park - the upper one is on the prairie while the lower one is lower in elevation 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.
Primative campground within the Chequamegon-Nicolet National Forest. Large sites for the most part, suitable for tents or RVs. See map in photos for notes on the physical attributes of each campsite.
No electric, water, or sewer hook ups. If you need to fill your freshwater tank there is a pump across from site #35 that had room to park our camper and fill with a hose (bring your own). Some people brought generators, which is allowed but annoying if you're trying to enjoy the peace and quiet.
No showers, but a dip in Lake Owen was refreshing. Our site was near the path to the beach, which is a short walk. No dogs allowed in the water or beach. Kayaks and canoes can be rented from the campground hosts.
Good food and options nearby in Cable. For amazing bloody Mary's head to Garnish Inn (about 20 min away).
Poor cell service.
Sites are large and well spaced. Free wifi, several pit toilets along with a new shower/restroom building. No playground or beach. Our kids mainly played at the campsite or rode their bikes around the loop by the sites in the 400s.
In my opinion the sites in the 400s were the most shaded (though none were heavily shaded) and had more grass. Our friends stayed in #402 and their site was similar but with more boulders on the site perimeter. Neither site had good trees for hammocks.
Firewood was a good deal - all you could use for $6/day.
There is a boat launch near the campground as well as a day use area in the park (need to drive there). The day use area is beautiful and you can walk down to the lake, fish, or picnic.