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

Irregular weathering of limestone into soil

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

Islands in river

Subject	Surface Water
Creator	Hickok, W. O. (William Orville), 1905-
Date	1932-09-01

Islands in Susquehanna

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

Islands in Susquehanna River

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

Islands in Susquehanna River

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

Islands in Susquehanna River

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

Islands in Susquehanna River at Whitaker Station

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

Islands in Susquehanna River looking downstream

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

Isoclinal folds in basal Martinsburg Formation

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

Isoclinal fold, syngenetic folds reclined

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

Isoclinal syngenetic reclined folds

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

Isoclinal syngenetic reclined fold, view down hinge

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

Italian Park

Subject	Surface Water
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-10-08

Italian Park

Subject	Surface Water
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-10-08

Italian Park

Subject	Surface Water
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-10-08

Italian Park

Subject	Surface Water
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-10-08

Italian Park

Subject	Surface Water
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-10-08

Italian Park

Subject	Surface Water
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-10-08

Jacks Mountain, from northeast

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

Jackson Bangor No 5. Quarry

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

Jackson Bangor No. 5 Quarry

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

Jackson Bangor No. 5 Quarry

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

Jackson Bangor No. 5 Quarry

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

Jacob's Church

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

J. G. Frock sand pit

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

Joanna Furnace, Hay Creek

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

John "Smokey" Miller at sketchmaster

Subject	Survey Staff
Creator	Koppe, Edwin F.
Date	1958

Johnson & Pond bluestone quarry

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

Johnstown well on Laurel Ridge

Subject	Oil and Gas
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date

Johnstown well on Laurel Ridge

Subject	Oil and Gas
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date

Johnstown well on Laurel Ridge

Subject	Oil and Gas
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date

Joint-block separation in sandstone of the Pocono Formation

Subject	Structure
Creator	Bolles, William H.
Date

Joint-block separation in sandstone of the Pocono Formation

Subject	Structure
Creator	Bolles, William H.

Joint controlled solution channel

Subject	Structure-Joints
Creator	Bolles, William H.
Date	1970-05-21

Joint controlled solution channels

Subject	Structure-Joints
Creator	Bolles, William H.
Date	1970-05-21

Jointing

Subject	Structure
Creator	Bolles, William H.
Date	1969-10-15

Jointing in Catskill beds

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

Jointing in Pottsville sandstone

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

Jointing in rock

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

Jointing in rock

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

Joint separation

Subject	Structure
Creator	Bolles, William H.
Date	1969-10-15

Joints filled with limonite and goethite (siderite?) in shale over Vanport limestone

Subject	Structure-Joints
Creator	Inners, Jon D.
Date

Joints in silt-clay laminite shale above Upper Freeport coal

Subject	Structure-Joints
Creator	Inners, Jon D.
Date

Jumonville's Grave

Subject	Miscellaneous
Creator	Willard, Bradford, 1894-
Date	1933-08-01

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