Waubonsie State Park in Fremont County, Iowa, lies in the Loess Hills along the Missouri River valley, a rare landform created when glacial sediment was blown and deposited against the valley’s eastern wall thousands of years ago. Named for Chief Wabaunsee of the Potawatomi people, the park is known for its deep narrow ridges, steep slopes, gorges, valleys, and terrace-like cat steps formed by slipping soil. Its fast-draining loess supports some plants more typical of arid regions, including yucca. The park offers picnicking, camping, hiking, horseback riding, scenic overlooks, and trails, and it is also part of the Lewis and Clark National Historic Trail.