Minneopa State Park

About this park

Minneopa State Park, established by the Minnesota Legislature in 1905 as the state's third state park, takes its name from the Dakota phrase for "water falling twice," a direct reference to the twin waterfall where Minneopa Creek drops over a resistant rock ledge within a valley carved by the massive Glacial River Warren, which drained Glacial Lake Agassiz roughly 15,000 years ago at the close of the last ice age. A limestone stairway trail circles the falls down into the valley and back up the opposite bank, giving visitors a close look at the underlying geology, including scattered glacial erratics, boulders transported from far to the north by the retreating ice sheet and deposited here in the ancient riverbed. In the park's northwest corner stands the Seppmann Mill, a stone and wood wind-driven gristmill completed in 1864 and modeled directly on windmills from builder Louis Seppmann's native Germany; in a favorable wind it once ground up to 150 bushels of wheat into flour daily, until a tornado destroyed its arms in 1890 and changing economics meant they were never replaced. The mill remains a rare surviving example of wind-powered grain milling in Minnesota, and the surrounding oak savanna and native prairie grassland overlooking the Minnesota River Valley give visitors sweeping views across one of the few remaining undeveloped stretches of this heavily farmed river valley. The park's most distinctive modern feature is its bison herd, grazing a dedicated prairie range that has become one of the signature wildlife-viewing experiences in the entire Minnesota state park system, drawing grassland bird species like meadowlarks and bobolinks alongside the bison themselves. Despite its relatively modest size compared to some of Minnesota's larger parks, Minneopa packs in waterfall scenery, prairie restoration, river-valley geology, and historic milling architecture, creating a genuinely dense visitor experience just five miles west of Mankato.