by J.L. Meuschke ... [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Minnesota Geological Survey
United States Department of Agriculture, Natural Resources Conservation Service, and Forest Service ; in cooperation with Minnesota Agricultural Experiment Station
by K.G. Books ... [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Minnesota Geological Survey
prepared by the Minnesota Department of Transportation, Technical Services Division; in cooperation with the U.S. Department of Transportation, Federal Highway Administration ; Hudson Map Company