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

Large cut in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Large cut in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-06

Large excavation in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-06

Large highway cut in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Large lens of tough massive sandstone in Martinsburg shale

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

Large lens of tough massive sandstone in Martinsburg shale

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

Large quarry, limestone

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

Laurel

Subject	Miscellaneous
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1922-06-04

Laurel

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

Laurel

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

Laurel Creek and highway in gap of Little Mountain

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

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

Laurel near Cush Creek

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

Laurel Ridge, taken from north of Johnstown

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

Laurel Trail

Subject	Miscellaneous
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-07-29

Lavino Refractory Company plant and quarry

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

Laying natural gas pipe line

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

Laying pipeline to "Lamp and Auld" well

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

Leached limestone

Subject	Geomorphology
Creator	Geyer, Alan R.
Date	1968

Leached limestone in background

Subject	Geomorphology
Creator	Geyer, Alan R.
Date	1968

Leached limestone in foreground

Subject	Geomorphology
Creator	Geyer, Alan R.
Date	1968

Leached limestone on north side of fault

Subject	Geomorphology
Creator	Geyer, Alan R.
Date	1968

Ledge of rock thought to represent depth of rock cutting

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

Ledges in Susquehanna River

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

Ledges in Susquehanna River

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

Ledges in Susquehanna River

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

Ledges in Susquehanna River

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

Ledges in Susquehanna River

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

Ledges in Susquehanna River

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

Ledges in Susquehanna River

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

Ledges of Chickies Rock

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

Ledges of M. Hamilton sandstone

Subject	Surface Water
Creator	Willard, Bradford, 1894-
Date	1934-07-20

Ledges of the Tuscarora in Susquehanna River

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

Leechburg

Subject	Cities, Towns, and Buildings
Creator	Hughes, H. Herbert (Harry Herbert), 1905-
Date

Leechburg

Subject	Cities, Towns, and Buildings
Creator	Hughes, H. Herbert (Harry Herbert), 1905-
Date

Leechburg

Subject	Cities, Towns, and Buildings
Creator	Hughes, H. Herbert (Harry Herbert), 1905-
Date

Leesburg Silica Sand Company quarrying steel molding sand

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

Left end of Palmer Lime quarry (Ledger limestone)

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

Lehigh Canal

Subject	Miscellaneous
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-09-19

Lehigh Canal

Subject	Miscellaneous
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-09-19

Lehigh Canal

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-07-31

Lehigh Canal

Subject	Miscellaneous
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-09-19

Lehigh Canal

Subject	Miscellaneous
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-09-19

Lehigh Canal

Subject	Surface Water
Creator	Willard, Bradford, 1894-
Date	1931-10-01