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

Old silt bank at No. 1 Mine of Spencer Coal Company

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

Old silt bank at St. Clair Colliery

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

Old slide terrace

Subject	Landslides
Creator	Craft, Jesse L.

Old stone farmhouse

Subject	Cities, Towns, and Buildings
Creator	Graeber, Charles Karsner, 1896-
Date	1934-08-07

Old stripping

Subject	Mineral Resources-Coal
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-10-14

Old stripping on Oriskany sandstone

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

Old Swede's House

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-09-21

Old zinc mine at Friedensville (abandoned)

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

Olean conglomerate

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1942-05

Olean conglomerate

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1942-05

Olean conglomerate

Subject	Stratigraphy
Creator	Shaffner, Marchant N. (Marchant Nissley), 1897-1990
Date	1937-05-29

Olean conglomerate

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1942-05

Olean or Portage sandstone

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

Olean sandstone, Brown's Run

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1928-10-08

Olean sandstone on Browns Run

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1928-10-08

Oliver Cromwell at diamond saw

Subject	Survey Staff
Creator	Koppe, Edwin F.
Date	1957

Oneida (?) conglomerate

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1924-04-01

Oneida-Medina rock flow

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1924-04-01

Onoko Glen

Subject	Rivers and Streams
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-10-14

Onoko Glen

Subject	Rivers and Streams
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-10-14

Onondaga Quarry

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1932-07-01

On road to Clifton Farm deep well

Subject	Topography
Creator	Johnson, Meredith E., 1897-
Date	1923-05-01

Ontelaunee Dam

Subject	Surface Water
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1933-11-01

Ontelaunee dolomite

Subject	Nonmetallic Mineral Resources
Creator	Geyer, Alan R.
Date	1968

Ontelaunee dolomite

Subject	Nonmetallic Mineral Resources
Creator	Geyer, Alan R.
Date	1968

Onyx Cave

Subject	Caves
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1923-07-20

Open channelways (joints)

Subject	Environmental Geology
Creator	Bolles, William H.
Date	197?

Open joint system in St. Paul limestone

Subject	Environmental Geology
Creator	Bolles, William H.
Date	197?

Open pit, Cornwall Iron Mine

Subject	Metallic Mineral Resources
Creator	Geyer, Alan R.
Date	1961-02

Open pit, Cornwall Iron Mine

Subject	Metallic Mineral Resources
Creator	Geyer, Alan R.
Date	1955

Open pit, Cornwall Iron Mine

Subject	Metallic Mineral Resources
Creator	Geyer, Alan R.
Date	1960

Open pit view from Big Hill

Subject	Metallic Mineral Resources
Creator	Geyer, Alan R.
Date	1952

Open valley at divide between head of Lycoming Creek on right and Towanda Creek toward left

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

Ordovician contact

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1929

Ordovician green slate quarry

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1924-11-12

Ordovician red slate with infolded limestone

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

Ordovician-Silurian contact

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-10

Ordovician-Silurian contact

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1929

Ordovician-Silurian contact


Subject	Stratigraphy Sedimentation
Creator	Willard, Bradford, 1894-

Ore boat coming in

Subject	Miscellaneous
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-07-30

Ore pit at old Scotia Mines

Subject	Metallic Mineral Resources
Creator	Foose, Richard Martin, 1915-
Date	1942-08-26

Oriskany sand quarry, Pittsburgh Silica Sand Company

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

Oriskany sand quarry, Pittsburgh Silica Sand Company

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

Oriskany sandstone

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

Oriskany sandstone

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

Oriskany sandstone quarry

Subject	Nonmetallic Mineral Resources
Creator	Geyer, Alan R.
Date	1970-05-22

Oriskany sandstone quarry

Subject	Nonmetallic Mineral Resources
Creator	Bolles, William H.
Date	1970-05-22

Oriskany sandstone quarry, Pittsburgh Plate Glass

Subject	Nonmetallic Mineral Resources
Creator	Bolles, William H.
Date

Oriskany (Shriver) limestone

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-07-15

Osgood 12-ton locomotive crane

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