topic

• Anthracite coal1
• Coal mines and mining1
• Geology1

name

• Dalson, A. A1
• Geological Survey of Pennsylvania1
• Rogers, Henry D. (Henry Darwin), 1808-18661
• Rogers, William Burton, 1809-18821
• More Less

collection

• Maps of North America1

place

• Pennsylvania1

genre

• Geological maps1
• Maps1

publisher

division

• Map Division1

type

• cartographic1