01077cam a22002651 4500 gs 30000131 DLC 20260227111334.0 751105s1929 wiuabf s001 0 eng gs 30000131 (OCoLC)1807656 DLC ViW OCoLC DLC QE179 .A2 no. 71 QE180.G6 A6 Aldrich, Henry R. (Henry Ray), 1891- The geology of the Gogebic iron range of Wisconsin, by H. R. Aldrich. Madison, Wis., Published by the state, 1929. x, 279 p. incl. illus., tables, diagrs. front. (map) xvi pl. (incl. fold. maps, 1 in pocket) 25 cm. Wisconsin. Geological and natural history survey. Bulletin [no.] 71; Economic ser., no. 24 Bibliographical footnotes. Geology Wisconsin. Iron mines and mining Wisconsin. Wisconsin Geological and Natural History Survey. Bulletin ; no. 71. Wisconsin Geological and Natural History Survey. Economic series ; no. 24. 26791 26791