Map of the Centre Oil Region From Oil City To Parkers Landing.

1871

Wrigley, Henry E.

1:20k

Richland, Clarion County, Pennsylvania.

1877

Caldwell, Joseph A.

1:32k

Scrub Grass Township.

1865

F.W. Beers & Co.

1:32k

Oil Belt of Clarion County, Pennsylvania. Venango County and Butler County

1877

Caldwell, Joseph A.

Lawrence, Mercer, Beaver, Butler counties.

1872

Gray, Ormando Willis; Walling, H. F.

1:300k

Allegheny River.

1865

F.W. Beers & Co.

1:32k

Venango Co., Pa.

1865

F.W. Beers & Co.

1:95k

Pittsburgh.

1924

Rand McNally and Company

1:380k

Plate D. West Central Pennsylvania.

1871

Hopkins, G.M.

Jefferson, Clarion, Indiana, Armstrong counties.

1872

Gray, Ormando Willis; Walling, H. F.

1:300k