The National Geographic Magazine, Volume 115National Geographic Society, 1959 - Geography Indexes kept up to date with supplements. |
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Page 302
... lake . They raised great bridges while traffic flowed over them without halt . They pumped raging rapids dry and dredged mountains of muck and glacial till . And when they were finished , what had they produced ? To understand the ...
... lake . They raised great bridges while traffic flowed over them without halt . They pumped raging rapids dry and dredged mountains of muck and glacial till . And when they were finished , what had they produced ? To understand the ...
Page 306
Duluth Lake Superior Soo Canals Elevation 602 feet Lake St. Clair Elevation 579 feet Lake Huron Elevation 572 feet Lake Erie Welland Canal Elev . 246 feet -Sea Level- Lake Ontizo CANADA U.S.A Duluth 90 Port Arthur Superior Fort William ...
Duluth Lake Superior Soo Canals Elevation 602 feet Lake St. Clair Elevation 579 feet Lake Huron Elevation 572 feet Lake Erie Welland Canal Elev . 246 feet -Sea Level- Lake Ontizo CANADA U.S.A Duluth 90 Port Arthur Superior Fort William ...
Page 487
... Lake , from bear - infested wilderness on the heights above Lake Superior . The Reserve people told me the supply of taconite is all but limitless . The iron - bearing rock of the Mesabi Range , they said , is 95 per- cent taconite ...
... Lake , from bear - infested wilderness on the heights above Lake Superior . The Reserve people told me the supply of taconite is all but limitless . The iron - bearing rock of the Mesabi Range , they said , is 95 per- cent taconite ...
Contents
VOLUME CXV | 155 |
TenColor Map Lands of the Eastern MediterraneanNIA | iii |
PUBLISHED BY | i |
Copyright | |
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