The reconstructed 1820's log fort is one of the premier historical sites in Nebraska and sits on 157 acres atop "Council Bluff," the site of the first meeting between the 1804 Lewis and Clark Expedition and the Oto-Missouria. We invite you to visit the garrison and discover the rich history preserved here. The park grounds are open year-round from 8am - 5pm. A valid Nebraska state park entry permit is required. The Harold W. Andersen Visitor Center is open Monday-Friday from Memorial Day weekend through Labor Day from 10 a.m. to 5 p.m. Please call for seasonal weekend hours. The Visitor Center requires an admission fee of $2 per adult and $1 for children under 13 (under 3 is free). Fort Atkinson hosts several living-history weekends a year that feature volunteers recreating the lives of the soldiers, artisans, and civilians that lived in and around the outpost.