topic

• Discovery and exploration9
• Discoveries in geography1
• Iron mines and mining1
• Mines and mineral resources1
• Surveys1
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name

• Geological Survey (U.S.)19
• United States. Congress (55th, 3rd session : 1898-1899)9
• Gannett, Henry, 1846-19145
• Post, W. S5
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collection

place

• Alaska9
• Chugach Mountains (Alaska)3
• California2
• Colorado2
• Kuskokwim River (Alaska)2
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genre

• Maps19
• Topographic maps15
• Diagrams1

publisher

• U.S. Geological Survey10
• U.S. Congress9

division

• Map Division19

type

• cartographic19
• still image1