Bradford Or Northern Oil Region

1878

Opperman, J.

1:63k

Warren, McKean, Potter, Forest, Elk, Cameron counties.

1872

Gray, Ormando Willis; Walling, H. F.

1:300k

Plate B. North Central Pennsylvania.

1871

Hopkins, G.M.

Plate A. Northwest Pennsylvania.

1871

Hopkins, G.M.

McKean, Warren, Forest and Elk Counties, Pennsylvania

1881

Opperman, J.

1:44k

Sampson Air Force Base : Geneva New York : Vicinity map

1951

United States. Air Force

1:500k

Pennsylvania (western part).

1948

Hammond, C.S.

1:585k

Pittsburgh & Western Pennsylvania : Coal & coke fields, oil regions & location of natural gas wells & gas mains leading to Pittsburgh

1876

Caldwell, J. A. (Joseph A.)

1:400k

Junior Auto Road Map of New York

1934

Rand McNally and Company

1:1m

Post Route Map of the State of Pennsylvania (Western Sheet) ... January 15, 1948.

1948

United States. Post Office Department

1:318k