Map of glacial (Quaternary age glacial and stream sediments) deposits of the Duluth Metropolitan Area, scale 1 inch = about 4 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23297.pdf
A plan for the improvement of the south section of Powderhorn Lake Park in Minneapolis, Minnesota. The plan is found in the Thirty-second Annual Report of the Board of Park Commissioners of the City of Minneapolis, after page 112.