. The Michipicoten iron ranges. D O R E LAURENTIAN UPPER HUR. LOWERHURONIANJ ^m WmMM LEGEND ♦-— • «. GRANITE-GNEISSDOPE CONGLOMERATEELEANOR SLATEHELEN IRON WAWA TUFFS GROS CAP GREENSTONE UNCLASSIFIED HURONIAN BASIC ERUPTIVESSAND AREAS DOTTED

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectgeology, bookyear1902