topic

• Coal mines and mining1
• Iron mines and mining1
• Real property1

name

• Geological Survey of Pennsylvania4
• Hart, Lane S4
• Lesley, J. P. (J. Peter), 1819-19033
• Julius Bien & Co2
• Cambria Iron Company1
• More Less

collection

• Maps of North America4

place

• Pennsylvania4
• Berks County1
• Berks County (Pa.)1
• Cambria County1
• Cambria County (Pa.)1
• More Less

genre

• Maps4
• Geological maps3
• Charts1
• Diagrams1
• Topographic maps1

publisher

• Second Geological Survey of Pennsylvania3
• Geological Survey of Pennsylvania?1

division

• Map Division4

type