1909. Geological Survey (U.S.). 130 x 175 centimeters Scale 1:125,000. General Minnesota Maps. U.S. Geological Survey, (Washington).
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1910. Geological Survey (U.S.). Marginal legend and cross sections. "Base map compiled by the U. S. Geological Survey from U. S. Geological Survey atlas sheets, Land Office reco... U.S. Geological Survey (Washington, D.C.?).
1910. Geological Survey (U.S.). Monograph LII Plate IV. 23 x 119 centimeters Scale 1:125,000 General Map Collection. A. Hoen & Co (Baltimore).
1919. Geological Survey (U.S.). The rectangles indicate the areas shown on the accompanying maps.; "Divisions outlined and named by Association of American Geographers." 25 x 39 c... U.S. Geological Survey (Washington, D.C).
1919. Geological Survey (U.S.). The rectangles indicate the areas shown on the accompanying maps." "Divisions outlined and named by Association of American Geographers. 25 x 39 c... U. S. Geological Survey (Washington, D.C.).
1916. Geological Survey (U.S.). Congressional districts are outlined and numbered in purple.; Insets: Mesabi Range -- St. Paul-Minneapolis and vicinity -- Duluth-Superior and vici... Dept. of the Interior (Washington, D.C).
1882. Geological Survey (U.S.). Chart of standard map symbols used on U.S. topographic maps.;Map on verso.;1 chart, illustrated;56 x 44 cm. U.S. Geological Survey (Washington, D.C.).
1911. Geological Survey (U.S.). Shows rivers, lakes, cities and state boundaries. 19 x 29 centimeters Scale approximately 1:16,500,000 General Map Collection. The Survey (Washington, D.C).
1911. Geological Survey (U.S.). Depths shown by isolines. 20 x 30 centimeters Scale approximately 1:17,000,000 General Map Collection. U. S. Geological Survey (Washington, D.C.).
1911. Geological Survey (U.S.). Shows drainage, state boundaries and principal cities. 43 x 71 centimeters Scale 1:7,000,000 General Map Collection. U.S. Geological Survey (Washington, D.C).