topic

• Discovery and exploration2
• Fortification2
• Indians of North America2
• Discoveries in geography1
• Discovery & exploration1
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name

• Abert, John James, 1788-18635
• Frémont, John Charles, 1813-18902
• Hood, Washington2
• United States. Topographical Bureau2
• Ackerman Lithr1
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collection

• Maps of North America5

place

• United States2
• Arkansas1
• Iowa1
• Louisiana1
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genre

publisher

• publisher not identified3
• U.S. Senate1

division

• Map Division5

type

• cartographic5