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

Slide tension crack in the Birmingham shale near the top of the hill I-279

Subject	Landslides
Creator	Craft, Jesse L.

Slip face and clay gouge, Wood Chromite Mine

Subject	Mineralogy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1938-02-03

Slip face and slide block

Subject	Landslides
Creator	Craft, Jesse L.

Slippery Rock Creek

Subject	State Parks
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1932-07-23

Slippery Rock Creek

Subject	State Parks
Creator	Bushnell, Kent O.
Date	1974-07

Slippery Rock Creek

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

Slippery Rock Creek Gorge

Subject	Geomorphology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1932-07-23

Slippery Rock Run in post-glacial channel

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

Slippery Rock Run in post-glacial channel

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

Slippery Rock Run in post-glacial channel

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

Slope failure, Triassic sandstone and conglomerate

Subject	Engineering Geology
Creator	Bolles, William H.
Date	1971

Slope failure, Triassic sandstone and conglomerate

Subject	Engineering Geology
Creator	Bolles, William H.
Date	1971

Slope failure, Triassic sandstone and conglomerate

Subject	Engineering Geology
Creator	Bolles, William H.
Date	1971

Slope failure, Triassic sandstone and conglomerate

Subject	Engineering Geology
Creator	Bolles, William H.
Date	1971

Slope failure,Triassic sandstone and conglomerate

Subject	Engineering Geology
Creator	Bolles, William H.
Date	1971

Slope mine, eastern end of seam

Subject	Mineral Resources-Coal
Creator	Moseley, John Reed

Slump structures in Keyser Limestone

Subject	Stratigraphy
Creator	Hoskins, Donald M.
Date	1964

Slump structures in Keyser Limestone

Subject	Stratigraphy
Creator	Hoskins, Donald M.
Date	1964

Slump structures in Keyser Limestone

Subject	Stratigraphy
Creator	Hoskins, Donald M.
Date	1964

Slump structures in Keyser Limestone

Subject	Stratigraphy
Creator	Hoskins, Donald M.
Date	1964

Sly Lake (near Lake Como)

Subject	Topography
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1922-08-12

Sly Lake (near Lake Como)

Subject	Topography
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1922-08-12

Small coal tow on Monongahela River

Subject	Cities, Towns, and Buildings
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-10-07

Small coal tow on Monongahela River

Subject	Cities, Towns, and Buildings
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-10-07

Small fold in Epler Formation

Subject	Structure-Folds
Creator	Geyer, Alan R.
Date	1956

Small mine tipple, Atlantic No. 3 Mine

Subject	Mineral Resources-Coal
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1941-09

Small quarries

Subject	Nonmetallic Mineral Resources
Date	1953

Small recent stripping "D" coal fault

Subject	Mineral Resources-Coal
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1946-05-14

Small stripping "E" bed

Subject	Mineral Resources-Coal
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1946-05-14

Small stripping of "E" bed

Subject	Mineral Resources-Coal
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1946-05-14

Small tributaries of Slippery Rock

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

Small tributaries of Slippery Rock

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

Small tributary to Crooked Creek

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

Smith Quarry, operated by T. and M. E. Farrel

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date

Smokey Hill Section

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1941-09

Snake Hollow Dutcher well

Subject	Oil and Gas
Creator	Robinson, J. French, 1890-
Date	1920

Snitz Creek dolomite

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1968

Soil creep on W. T. Grove farm

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

Soils slide

Subject	Landslides
Creator	Craft, Jesse L.

Soils slide on end of construction of I-279

Subject	Landslides
Creator	Craft, Jesse L.

Soldiers Monument

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-10-31

Soldiers Monument

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-10-29

Soldier's Monument cut from sandstone quarried nearby

Subject	Cities, Towns, and Buildings
Creator	Robinson, J. French, 1890-

South arm of dike, Big Hill, Cornwall

Subject	Metallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1922-08-17

South bank of Youghiogheny River

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

Southeast bank of old quarry

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-04-23

Southeast bank of old quarry on Elk Run

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date

South end Conneaut Lake

Subject	Surface Water
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1933-10-02

South end of Nittany Mountain (synclinal mountain)

Subject	Topography
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1922-10-15

South end of stripping "B" coal and clay

Subject	Mineral Resources-Coal
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1941-09