Pine Grove, Warren County, Pennsylvania.

1878

Odbert, A.

1:32k

The Oil Regions of Pennsylvania; with maps and charts of Oil Creek, Allegheny River, etc

1864

GILLELEN, F. M. L.

Conewango, Warren County, Pennsylvania.

1878

Odbert, A.

1:24k

Pleasant, Warren County, Pennsylvania.

1878

Odbert, A.

1:32k

Mead, Warren County, Pennsylvania.

1878

Odbert, A.

1:32k

McKean, Warren, Forest and Elk Counties, Pennsylvania

1881

Opperman, J.

1:44k

Warren County, Pennsylvania, By Andrew H. Ludlow, 1838.

1838

Ludlow, Andrew H.

Warren County, Pennsylvania.

1878

Odbert, A.

Map of the Oil Region of Pennsylvania.

1865

Townsend & Dale

1:158k

Map of the County of Chautauque (New York).

1840

Burr, David H., 1803-1875

1:167k