Custer State Park is breathtakingly beautiful! We saw bison, elk, prairie dogs, mountain goats, and deer in the wild! Our campsite was amazing! If you ever go there, get site 6E at Grace Coolidge Campground. It's a large space, backed by a stream and a meadow. At night we watched the fireflies dance in the meadow and we fell asleep to the sound of the brook and the crickets. It was a slice of heaven!