note: … to N.W. across Coal Hill

abstract: … of coal bed. Includes

note: … coal fields keyed

abstract: Shows coal mining

abstract: … outcrops, limits of coal

abstract: Includes locations of coal mines. Relief

note: … of the Lehigh Coal

topic: Anthracite coal

topic: Coal

abstract: Shows the coal

topic: Coal

topic: Coal mines and mining

abstract: … coal mining area, mine

abstract: … Creek Coal Basin showing

note: … maps, Southern Coal

note: Shows "area of workable coal beds," mine

topic: Coal

topic: Coal

note: … Coal and Navigation

note: …"Constructed from the surveys of the Lehigh Coal

abstract: … showing coal measures

abstract: … categories of "coal measures

note: … Coal Field (in

abstract: Shows the location of several coal companies

topic: Anthracite coal

topic: Coal mines and mining

topic: Coal mines and mining

topic: Coal mines and mining

topic: Coal

topic: Coal mines and mining

note: … coal fields

abstract: … coal company locations

abstract: Shows locations of selected rock types, coal

topic: Anthracite coal

note: …]; Cumberland coal.

note: … and thickness of Clermont Coal

abstract: … and Upper Freeport Coals

topic: Anthracite coal

abstract: …, and coal shafts, bores

topic: Coal mines and mining

topic: Coal mines and mining

topic: Coal

topic: Anthracite coal

abstract: … locations of coal mines

abstract: … not show the coal

topic: Coal mines and mining

abstract: … landowners and coal companies

note: … of the bituminous coal