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

Close up of decayed Triassic conglomerate quartz pebbles in soil and sand

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-07-30

Close-up of edgewise conglomerate

Subject	Stratigraphy
Creator	Moseley, John Reed
Date	1950

Close-up of excavation

Subject	Stratigraphy
Creator	Craft, Jesse L.

Close up of face of quarry in Jerseyan sand and gravel

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

Close up of fault contact of Tuscarora and Martinsburg

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

Close up of fault contact of Tuscarora and Martinsburg

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

Close-up of fault in railroad cut south of Winburne

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

Close up of fault shown in negative no. 1192

Subject	Structure-Faults
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-08-23

Close-up of flint clay in stripping


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

Close up of fractured rock

Subject	Structure
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-01-13

Close up of kilns

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1923-07-09

Close up of "Lafayette" deposit on south edge of Broomall

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

Close up of Laurel

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

Close up of north side of pit in Oriskany sandstone

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

Close up of Oswego sandstone

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-05-16

Close up of quarry of J. B. Coen Brick and Tile Works

Subject	Nonmetallic Mineral Resources
Creator	Johnson, Meredith E., 1897-
Date

Close-up of Roaring Spring

Subject	Surface Water
Creator	Lohman, Stanley William, 1907-
Date	1934

Close up of Salamanca (?) sandstone at Bradford Brick Company quarry

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

Close up of sandy shale beds near top of upper quarry

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

Close up of sandy shale near top of quarry

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

Close up of slickensided face

Subject	Structure-Faults
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-01-13

Close up to show fracture or cleavage in Martinsburg

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-07-29

Close-up view of Homewood sandstone at Bilgers

Subject	Stratigraphy
Creator	Lohman, Stanley William, 1907-
Date	1934

Close-up view of Roaring Spring

Subject	Surface Water
Creator	Lohman, Stanley William, 1907-
Date	1934

Clubhouse in mountains

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

Clubhouse of Weilder Outing Club

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

Clydesdale Brick and Stone Company

Subject	Economic Uses
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1926-10-01

Clydesdale Brick Company plant

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1926-10-01

Coal barges in lock on Monongahela River

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

Coal bed faced up for measurement

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

Coalbeds at Clearfield

Subject	Mineral Resources-Coal
Creator	Bolles, William H.
Date	1970-07

Coalbeds at Clearfield Exit 19

Subject	Mineral Resources-Coal
Creator	Bolles, William H.
Date	1970-07

Coal bloom in road

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-10-31

Coal measures

Subject	Mineral Resources-Coal
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1935-09-11

"Coal mine" excavation

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

Coal mine in high terrace, 750 feet above tide

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

Coal mining - Augering operation on Upper Freeport coal

Subject	Nonmetallic Mineral Resources
Creator	Inners, Jon D.
Date	1974-08-20

Coal mining - strip mine on Clarion coal

Subject	Nonmetallic Mineral Resources
Creator	Inners, Jon D.
Date	1974-08-21

Coal mining - Stripping operation of Upper Kittanning coal

Subject	Nonmetallic Mineral Resources
Creator	Inners, Jon D.
Date	1974-09-26

Coal mining - Tipple at Beechton, looking east

Subject	Nonmetallic Mineral Resources
Creator	Inners, Jon D.
Date	1974-09-24

Coal mining - Westville Coal Company

Subject	Nonmetallic Mineral Resources
Creator	Inners, Jon D.
Date	1974-09-26

"Coal" prospects in Ordovician black shale


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

Coal sampling outfit used by Thomas Fraser

Subject	Mineral Resources-Coal
Creator	Fraser, Thomas
Date	Summer 1926

Coal - strip mine showing Lower Kittanning coals

Subject	Nonmetallic Mineral Resources
Creator	Inners, Jon D.
Date	1974-09-11

Coal stripping

Subject	Mineral Resources-Coal
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1943-08-26

Coal stripping

Subject	Mineral Resources-Coal
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1943-08-26

Coal stripping operation

Subject	Mineral Resources-Coal
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1915

Coal tipple and power house

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

Coastal ranges, approximately 100 miles northwest of Juneau, Alaska

Subject	Glacial Geology
Creator	Socolow, Arthur A.
Date	1952

Cockeysville Marble

Subject	Metamorphic Rocks
Creator	Geyer, Alan R.
Date	1968-07