Loess Hills Scenic Byway

The Loess Hills Scenic Byway runs for approximately 220 miles along the western edge of Iowa from Sioux City in the north to Hamburg near the Missouri border, traversing a geologically unique landscape found in significant size in only two places on Earth: western Iowa and Shaanxi Province, China. The Loess Hills are formed from wind-deposited silt (loess) laid down after the last glacial period, creating steep, sharply ridged hills that rise dramatically from the Missouri River floodplain to heights of 200 feet or more — an unexpected topographic surprise in a state associated with flat prairies. The byway follows a combination of Iowa secondary roads and county routes that wind across the ridgeline, through narrow creek valleys, and into small historic towns of western Iowa including Moorhead, Pisgah, and Hamburg. The Loess Hills Visitors Center at 607 Iowa Ave in Moorhead provides maps, interpretive exhibits on loess geology, and information on the region's prairie ecosystem. The hills support remnant tallgrass prairie vegetation — a rare survival of the original Iowa prairie that once covered most of the state — including native grasses, pasque flowers, prairie violets, and prickly pear cactus, the latter at the northeastern limit of its natural range. Hitchcock Nature Center in Honey Creek (Pottawattamie County) offers the best developed trail network for on-foot exploration of the ridgeline landscape, with overlooks toward Nebraska and the Missouri River valley. April prescribed prairie burns — intentional fires set by land managers to maintain prairie health — create dramatic smoke and regrowth visible from the byway. October brings warm amber color to the oak and hickory woodlands covering the steeper hill slopes.