Frontenac State Park occupies a dramatic stretch of the Mississippi River in Minnesota, where a long limestone bluff rises above Lake Pepin and reflects both ancient seafloor geology and later ice-age carving by Glacial River Warren. Native peoples lived here long before the park, including Hopewell culture communities, followed later by Dakota and Meskwaki. European trade and exploration reached the area in the 17th and 18th centuries, and the town of Frontenac grew from 19th-century settlement, quarrying, and a resort era tied to steamboat travel. Authorized in 1957 after debates over development, the park remains known for restrained preservation, diverse habitats, and exceptional birdwatching along the Mississippi Flyway.