Pennsylvania Geological Survey - Historical Photographs - Browse all items - Pennsylvania Photos and Documents

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Pennsylvania Geological Survey - Historical Photographs - Browse all items - Pennsylvania Photos and Documents

Highway cut in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Homewood sandstone

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Homewood sandstone

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1941-08

Homewood sandstone?

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Homewood sandstone cliff

Subject	Stratigraphy
Creator	Hickok, W. O. (William Orville), 1905-
Date	1934-07-01

Homewood sandstone, Mercer coal and clay, Connoquenessing sandstone

Subject	Stratigraphy
Creator	Shaffner, Marchant N. (Marchant Nissley), 1897-1990
Date

Homewood Sandstone over Mercer coal and limestone

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-09-22

Humphrey Clay and Shale Quarry

Subject	Stratigraphy
Creator	Graeber, Charles Karsner, 1896-
Date	1932-08

Humphrey Clay and Shale Quarry

Subject	Stratigraphy
Creator	Graeber, Charles Karsner, 1896-
Date	1932-08

Humphrey Clay and Shale Quarry

Subject	Stratigraphy
Creator	Graeber, Charles Karsner, 1896-
Date	1932-08

Humphrey Clay and Shale Quarry

Subject	Stratigraphy
Creator	Graeber, Charles Karsner, 1896-
Date	1932-08

Hyndman-Ridgeley

Subject	Stratigraphy
Creator	Cleaves, Arthur B. (Arthur Bailey), 1905-1985
Date	1936-08

Interstate 80, mile 67.26

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1970-07

Iron nodules above falls in Elklick Creek

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1935-07-20

Iron nodules on top of Freeport limestone

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1928-09-18

Irregular base of Saltsburg sandstone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1925-06-04

Irregular base of Saltsburg sandstone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1925-06-04

Juniata Formation

Subject	Stratigraphy
Creator	Wells, Richard B.
Date	1969-04-03

Juniata Formation

Subject	Stratigraphy
Creator	Wells, Richard B.
Date	1968-02-26

Juniata Formation

Subject	Stratigraphy
Creator	Wells, Richard B.
Date	1969-04-03

Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-06

Juniata Formation

Subject	Stratigraphy
Creator	Wells, Richard B.
Date	1968-02-26

Juniata Formation, large cut

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-06

Juniata-Tuscarora

Subject	Stratigraphy
Creator	Wells, Richard B.
Date	1968-02-26

Juniata-Tuscarora contact

Subject	Stratigraphy
Creator	Wells, Richard B.
Date	1968-02-26

Juniata-Tuscarora contact

Subject	Stratigraphy
Creator	Wells, Richard B.
Date	1968-03-06

Juniata-Tuscarora Formations

Subject	Stratigraphy
Creator	Wells, Richard B.
Date	1968-03-06

Juniata-Tuscarora transition zone

Subject	Stratigraphy
Creator	Wells, Richard B.
Date	1968-03-05

Kindle's section on Erie Railroad

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1931-04-01

Kindle's section on Erie Railroad

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1931-04-01

Kinzers Formation, Lower Cambrian (overlying)

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Kinzers Formation over vintage dolomite

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Kinzers Formation over vintage dolomite, faulted

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Kinzers member of Tomstown limestone group of Cambrian age

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1928-05-01

Kinzers shale outcrop

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

"Lackawaxen" conglomerate

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1933-09-28

"Lafayette" deposit

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Large cut along Interstate 80, Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-07

Large cut in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Large cut in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-06

Large cut in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-06

Large cut in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-06

Large excavation in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-06

Large highway cut in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Large lens of tough massive sandstone in Martinsburg shale

Subject	Stratigraphy
Creator	Hughes, H. Herbert (Harry Herbert), 1905-
Date	1928-02-01

Large lens of tough massive sandstone in Martinsburg shale

Subject	Stratigraphy
Creator	Hughes, H. Herbert (Harry Herbert), 1905-
Date	1928-02-01

Ledge of rock thought to represent depth of rock cutting

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-09-21

Ledges in Susquehanna River

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1939-09-12

Ledges in Susquehanna River

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1939-09-12

Ledges in Susquehanna River

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1939-09-12