Fort Atkinson State Historical Park: Located just east of Hwy 75 in Fort Calhoun, commemorates the first and largest military post west of the Missouri River. In 1804, Lewis and Clark met with Native Americans on the "Council Bluffs" near the spot where Fort Atkinson was later located. The long promontory overlooking the Missouri River was often a gathering place for Native Americans, fur traders and soldiers. Clark reported that the site was ideal for military fort. Accordingly, Fort Atkinson was established in 1820. From 1820 to 1827, it had a garrison of 1,000 soldiers within its walls. It was abandoned in 1827. The area was acquired by the Nebraska Game and Parks Commission in 1963 for development as a state historical park. The Harold W. Andersen Visitor Center was opened in 1986. Living history programs are held during six weekends from May until October, where area volunteers reenact life as it would have been during the time the for was in operation. Grounds are open in the summer season from 8 am to 7 pm; 9 am to sunset the rest of the year. Visitor center and interpretive facilities open daily Memorial Day thru Labor Day, 9 am to 5 pm; weekend, May, Sept., & Oct., 10 am to 5 pm. Park entry permit required. 402-468-5611. www.ngpc.state.ne.us/parks/ftatkin.html

Lewis and Clark State Park: Located near Onawa, near Decatur, just east of Hwy 75, this park featrues interpretive signs and full-scale keelboat replica. Living history programs and an annual Lewis and Clark Festival are featured at the park.