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

Skip to search Skip to main Skip to footer

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

Rock cut valley of Conneaut Creek

Subject	Stratigraphy Sedimentation
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-08-03

Rockdale Run Formation

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Rockdale Run Formation

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Rockdale Run Formation

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Rockdale Run Formation

Subject	Stratigraphy
Creator	Root, Samuel I.
Date	1972-09-21

Rock section through Ironstone Ridge on Route 944

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1934-08

Rock section through Ironstone Ridge on Route 944

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1934-08

Rocks on crest of Third Mountain


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

Rondout-Manlius Nearpass quarry

Subject	Stratigraphy
Creator	Cleaves, Arthur B. (Arthur Bailey), 1905-1985
Date	1937-07-03

Rose Hill and Tuscarora Formations

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

Salamanca (?) sandstone

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-08-27

Saltsburg, Woods Run and Buffalo sandstone horizon

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1923-05-22

Sand bank east of State Road (Route 77)

Subject	Stratigraphy
Creator	Corbin, J. Ross
Date	1925-11-04

Sand bank east of State Road (Route 77)

Subject	Stratigraphy
Creator	Corbin, J. Ross
Date	1925-11-04

Sand pit of decomposed Triassic sandstone

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-04-14

Sandstone

Subject	Stratigraphy
Creator	Shaffner, Marchant N. (Marchant Nissley), 1897-1990
Date	1950

Sandstone

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

Sandstone and siltstone, Pennsylvanian

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

Sandstone boulders (Pottsville)

Subject	Stratigraphy
Creator	Graeber, Charles Karsner, 1896-
Date	1933-10-28

Sandstone cliff (Burgoon?)

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-08-21

Sandstone, Hammer Creek Formation

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1969

Sandstone over Pittsburgh coal

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1928-06-16

Sandstone quarry in Martinsburg shale

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-04-22

Sandstone quarry in Martinsburg shale

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-04-22

Sandstone quarry of Dunbar Corporation

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-08-11

Sandstone quarry on Glen Morris farm

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-11-03

Sandstones at top of Turkey Ridge and Dalmatia Members of Mahantango Formation

Subject	Stratigraphy
Creator	Hoskins, Donald M.
Date

Sandy phase of Martinsburg with thin gravel cover

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

Second Mountain from west shore

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1931-07-01

Second Mountain from west shore

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1931-07-01

Section including Freeport sandstone

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1928-05-23

Section of sand pit (glacial)

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

Section of stripping on A' clay


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

Setters Formation

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

Sewickley sandstone

Subject	Stratigraphy
Creator	Schoeneck, P. S.
Date	Summer 1921

Shale above Pine Creek limestone at quarry near Wittmer

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1924-08-30

Shales above Brookville coal

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

"Shale Valley"

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1968

Shawangunk on contact

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1932-06-18

Shawangunk on contact

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1932-06-18

Shore of Lake Erie showing shale polished by wave action

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

Showalter Limestone Quarry

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1958

Showalter Limestone Quarry

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1958

Showing disappearance of Upper Freeport coal

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1927-07-11

Showing variation in Upper Freeport coal and of rocks above and below

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

Shows Middle Kittanning and strata

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-08-06

Siltstone and shale beds in Sherman Ridge Member of Mahantango

Subject	Stratigraphy
Creator	Inners, Jon D.
Date	1972-11

Silurian-Devonian contact

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1932-08-01

Silurian, Medina

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-08-03

Silurian rocks

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