topic

• Geology3
• Explorations and surveys2
• Pacific railroads2
• Charts, diagrams, etc1
• Discovery and exploration1
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name

• Blake, William P. (William Phipps), 1826-19103
• A. Hoen & Co1
• Marcou, Jules, 1824-18981
• Pope, John, 1822-18921
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collection

place

• California2
• California, Northern1
• Lake County1
• Lake County (Or.)1
• Oregon1
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genre

• Maps4
• Geological cross-sections1
• Geological maps1

publisher

• Lith. by A. Hoen & Co1
• U.S. Pacific Rail Road Exps. & Surveys, War Department1
• U.S. War Department?1
• Wagner & McGuigan, Lith1
• War Department1
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division

• Map Division4

type

• cartographic4
• still image1