1915. Minnesota Geological Survey. Cartographic Details: Scale not given (W 95°36'00"--W 94°24'00"/N 48°59'00"--N 47°24'00"). Relief shown by contours. "Plate II" in upper right corn... The Survey (Minnesota), 1915.
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1919. Cartographic Details: Scale [1:253,240] (W 94°25'00"--W 93°04'00"/N 48°42'00"--N 47°50'00"). "Compiled from maps of U.S. land office county map. Dr... Minnesota Geological Survey (Minnesota).
1919. Soper, Edgar Kirke, 1886-. Peat Deposits of Northern Minnesota. Minnesota Geological Survey.
1919. Soper, Edgar Kirke, 1886-. Peat Deposits of Beltrami County, Minnesota, showing location of soundings and depth of peat and topography of the surface of the bogs north of Red... Minnesota Geological Survey.
1919. Soper, Edgar Kirke, 1886-. Peat Deposits of Koochiching County Minnesota, showing locations of drainage ditches, scale 1 inch = about 4 miles. Minnesota Geological Survey.
1919. Soper, Edgar Kirke, 1886-. Map showing Peat Deposits of Itasca County Minnesota, scale 1 inch = about 4 miles. Minnesota Geological Survey.
1919. 34 x 59 centimeters General Minnesota Maps. [Minnesota Geological Survey], (Minnesota).
1968. Projection: Polar Stereographic Projection: Standard Parallel -80º14'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.
4139. Pemba Island
1913. Great Britain. Ordnance Survey. Relief shown by contours.; Includes index to adjoining sheet.; In upper left margin: Africa 1:63,360. 118 x 59 centimeters, on sheets 82 x 69 centi... Ordnance Survey Office (Southampton).
1733. Homann Erben (Firm). 54 x 48 centimeters Scale [1:3,000,000] Ames Library of South Asia Maps.