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

Alexander Caverns

Subject	Caves
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1931-05-20

Anticlinal

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01

Anticline

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Approaching ridge of Medina

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01

Bald Eagle Formation

Subject	Stratigraphy
Creator	Wells, Richard B.
Date	1968-03-07

Bedding faces

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01

Between poles 153-7 and 153-8 below Mifflin

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Between poles 153-7 and 153-8 near Mifflin

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Broad anticline

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

Broad syncline in Salina rocks

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Broad syncline in Salina rocks

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Cave on Peachy Farm

Subject	Caves
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1931-10-17

Center of anticline

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01

Christ Lutheran Church

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-08-30

Close up of kilns

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

Close up of Oswego sandstone

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

Contact between Tuscarora on right of center and Juniata left of center


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

Contact of Don and Do

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1934-06-22

Contact of Don and Do, a disconformity at hammer

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1934-06-22

Detail of kiln opening

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

Elks Club

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-08-20

Elks Club

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-08-20

Entrance to cave on Peachy Farm

Subject	Caves
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1931-10-17

Fairly symmetrical syncline in Salina rocks

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Folding and faulting of strata

Subject	Structure
Creator	Johnson, Meredith E., 1897-
Date	1923-04-26

Fold section

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Front Mountain Medina? in background

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-07-16

Ganister on flank of Long Mountain

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-07-16

Gap between Front Mountain (on left) and Spruce Mountain (on right)

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

Glass sand loaded in cars wet

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1931-06-25

Haws Refractory Company plant

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

Highway through Mann Narrows of Jacks Mountain

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-07-14

Inclined Salina rocks

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Juniata River

Subject	Surface Water
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1931-06-25

Juniata River

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

Juniata River, Tuscarora Mountain in background

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

Juniata River, Tuscarora Mountain in background

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

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

Kishacoquillas Valley

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-08-02

Laurel Creek and highway in gap of Little Mountain

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-07-16

Laurel Creek Reservoir

Subject	Structure-Kink Bands
Creator	Faill, Rodger T.
Date	1973-09-07

Laurel Creek Reservoir

Subject	Structure-Kink Bands
Creator	Faill, Rodger T.
Date	1973-09-07

Laurel Creek Reservoir

Subject	Structure-Kink Bands
Creator	Faill, Rodger T.
Date	1973-09-07

Laurel Creek Reservoir

Subject	Structure-Kink Bands
Creator	Faill, Rodger T.
Date	1973-09-07

Laurel Creek Reservoir

Subject	Structure-Kink Bands
Creator	Faill, Rodger T.
Date	1973-09-07

Laurel Creek Reservoir

Subject	Structure-Kink Bands
Creator	Faill, Rodger T.
Date	1973-09-07

Laurel Creek Reservoir

Subject	Structure-Kink Bands
Creator	Faill, Rodger T.
Date	1973-09-07

Lewistown

Subject	Cities, Towns, and Buildings
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01

Lewistown Narrows

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01