List of National Natural Landmarks in MinnesotaThere are eight National Natural Landmarks in the U.S. state of Minnesota.NameImageDateLocationCountyOwnershipDescriptionAncient River Warren ChannelBig Stonemixed- state, privateA channel cut by the Ancient River Warren during the Ice Age. Extends into South Dakota.Cedar Creek Natural History AreaAnoka, Isantimixed- state, privateA relatively undisturbed area where tall grass prairie, eastern deciduous forest and boreal coniferous forest biomes meet.Itasca Natural AreaClearwaterstate Contains some of the finest remaining stands of virgin red pine, spruce- balsam fir, and maple-basswood-aspen forest.Keeley Creek Natural AreaLakefederal A large tract of undisturbed mixed pine and black spruce forest.Lac la Croix Research Natural AreaSt. Louisfederal Old-growth virgin pine forests.Lake Agassiz Peatlands Natural AreaKoochichingstateAn example of the extensive peatlands occupying the bed of ancient glacial Lake Agassiz.Pine Point Research Natural AreaCassfederal Contains undisturbed stands of red and mixed pine.Upper Red Lake PeatlandBeltramimixed- federal, state, private, nativeOne of the largest peatlands remaining in the coterminous United States.