Clearfield, Cambria, Blair counties.

1872

Gray, Ormando Willis; Walling, H. F.

1:300k

Coal, Iron, and Oil; or, the Practical American miner. A plain and popular work on our mines and mineral resources ... With numerous maps and engravings, etc

1866

DADDOW, Samuel Harries and BANNAN (Benjamin)

Pennsylvania

1933

Department of the Interior U. S. Geological Survey

1:63k

Plate H. South Central Pennsylvania.

1871

Hopkins, G.M.

Folds. Hollidysburg, PA. Belcher Islands, Canada.

1966

O'Brien, Emmett J

1:63k

Profiles of Massachusetts Railroad, Florida Canal...

1834

Tanner, Henry S.

Somerset, Bedford, Fulton counties.

1872

Gray, Ormando Willis; Walling, H. F.

1:300k

Huntingdon, Juniata, Mifflin, Perry counties.

1872

Gray, Ormando Willis; Walling, H. F.

1:300k

Map of Virginia (upper center sheet)

1807

Madison, Rev. James

1:444k

Olmsted Air Force Base : Middletown Pennsylvania : Vicinity map

1951

United States. Air Force

1:500k