topic

• Discovery and exploration1
• Geology1
• Landowners1
• Oil fields1
• More Less

name

• Erhard (Firm)1
• Imprimerie Lemercier et cie1

collection

• Maps of North America2

place

• California1
• Pennsylvania1
• Venango County1
• Venango County (Pa.)1

genre

• Maps2
• Cadastral maps1
• Geological maps1

publisher

division

• Map Division2

type

• cartographic2