LaRue-Pine Hills State Natural Area is Iowa’s only designated natural area with significant sandstone cliffs and ancient oak savanna, offering rugged hiking and unique ecological features in the Driftless Area.
Located in northeastern Iowa within the Driftless Area, LaRue-Pine Hills State Natural Area encompasses a dramatic landscape of steep sandstone bluffs, deep ravines, and open oak savanna. The area is well known for its layered Devonian sandstone cliffs that rise sharply above the surrounding valleys, creating a rare vertical terrain for Iowa. The natural area protects one of the largest oak savanna remnants in the state, with bur oak, red oak, and black oak dominating the landscape alongside prairie grasses and wildflowers. This diversity supports a variety of wildlife including white-tailed deer, wild turkey, and many bird species, especially during spring and fall migrations. Historically, the area was preserved in the early 20th century and has served as a critical refuge for native plant communities and geological formations that tell the story of Iowa’s ancient environments. Outdoor recreation centers on hiking challenging terrain with trails that offer spectacular bluff views, rock formations, and seasonal wildflowers. Visitors are attracted to the stunning vistas where towering sandstone cliffs meet the lush green oak savanna and rolling hills. Due to its steep nature, the natural area appeals to hikers seeking more technical and physically demanding routes compared to typical Iowa landscapes. The area does not have developed campgrounds but is popular for day use, nature study, birdwatching, and photography. Its unique geology and ecology make it a must-visit destination for anyone interested in Iowa’s natural heritage.
Dramatic sandstone cliffs with panoramic overlooks
Large tracts of rare oak savanna habitat
Rugged, steep hiking trails with geological features
Abundant wildflower displays in spring and early summer
Layers of Devonian sandstone create vertical cliffs rising over 100 feet, offering scenic views and unique rock formations.
One of Iowa’s largest remaining oak savannas, featuring a mix of bur, red, and black oaks with an understory of prairie grasses.
A popular viewpoint accessible by trail that provides sweeping views of the rugged valleys and bluffs.