Goodrich road map of Minnesota.
1919. B.F. Goodrich Company.Touring Bureau.
1919. Preus, J. A. O.(Jacob Aall Ottesen),1883-1961.
1919. H.M. Smyth Printing Company (Saint Paul, Minn.). Atlas plate 69. Longitude west from Greenwich and Washington, D.C. 42 x 58 cm.
Peat deposits of Koochiching County Minnesota showing locations of drainage ditches.