We are staying here specifically to visit the monument. It is crowded with older people like us,in the electric sites, and their older dogs. Level sites. Showers. Concession stand at the picnic area. There are stunning views of the Mississippi River Valley too. Many trails will lead you by ancient Native burial mounds, including an Effigy of a bear (probably a bear.) Heard an owl close by last night. We're not fans of side by side camping sites, but we are at Effigy Mounds or hiking this park most of the time.