1909. Van Hise, Charles Richard, 1857-1918. Relief shown by contours.; Covers area from Cranberry Lake to Gogebic Lake.; "Contour interval 20 feet."; "U.S. Geological Survey." "Monograph LII,... U.S. Geological Survey (Washington,  D.C).
    
  
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      1915. Geological Survey (U.S.). Compiled in 1910 and 1911.; "Engraved and printed by the U.S. Geological Survey 1913, reprinted 1915."; "Advance sheet. Subject to correction."; In... U.S. Geological Survey (Washington,  D.C).