Lake Erie Dunkirk to Erie and Long Point

1906

U.S. Lake Survey

1:80k

Lake Erie Dunkirk to Erie and Long Point

1914

U.S. Lake Survey

1:80k

Erie, Crawford, Venango counties.

1872

Gray, Ormando Willis; Walling, H. F.

1:300k

Chautauque County.

1829

Burr, David H., 1803-1875

1:151k

Map of New York : Patented Jan 4, 1921, copyright 1923 by Rota-ray map systems, inc.

1923

Rota-ray map systems, inc.

Plate A. Northwest Pennsylvania.

1871

Hopkins, G.M.

"Niagara, Erie, Chautauqua, Cattaraugus, Orleans, Genesee, Wyoming, Allegany, Monroe, and Livingston Counties"

1871

Niagara Municipal Airport : Niagara Falls New York : Vicinity map

1952

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