| | Report (issue) | Geology and Ore Deposits of the Cuyuna North Range Minnesota GEOLOGICAL SURVEY PROFESSIONAL PAPER...407 Geology and Ore Deposits of the Cuyuna North Range Minnesota By ROBERT GORDON SCHMIDT GEOLOGICAL...1924Geology and ore deposits of the Cuyuna North range, Minnesota. Washington, U.S. Govt. Print. Off....87-91. l.Geology Minnesota Cuyuna North range. 2.Ore-deposits Minnesota Cuyuna North Range. S.Iron ores Minnesota...Minnesota Cuyuna North range. I.Title: The Cuyuna North range, Minnesota. (Series) For sale by the Superintendent | | | Report (issue) | ijJ~t 1tuiUtfaity of .fIiuutania MINNESOTA GEOLOGICAL SURVEY WILLIAM H. EMMONS, DIRECTOR IN...BULLETIN NO. 15 PRELIMINARY REPORT ON THE GEOLOGY OF EAST CENTRAL MINNESOTA INCLUDING THE CUYUNA IRON-ORE...A. W. JOHNSTON MINNEAPOLIS The University of Minnesota 19 1 8 CONTENTS Introduction ................ . . . . . . . . .... . 2 General geology of Minnesota. . . . . . . . . . . .... . . . . . . . . . .... . . . . . ... 4- 1 5 Rocks of east central Minnesota. . . . . . . . . . . . . . . . . . . . . . . . |
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