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Magnetic Base Stations in Lake Superior Iron Districts

Published Year

• 1950-1959 (1) *

Subject

• Iron ores -- Michigan -- Lake Superior. (1)
• Iron ores -- Minnesota -- Lake Superior. (1) *
• Iron ores -- Wisconsin -- Lake Superior. (1)
• Prospecting -- Geophysical methods. (1)

Author

• Bath, Gordon D. (1)

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