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

Triassic border fault (?)

Subject	Structure
Creator	Geyer, Alan R.
Date	1971

Triassic border fault (?)

Subject	Structure
Creator	Geyer, Alan R.
Date	1971

Triassic border fault (?)

Subject	Structure
Creator	Geyer, Alan R.
Date	1971

Triassic border fault (?)

Subject	Structure
Creator	Geyer, Alan R.
Date	1971

Triassic border fault (?)

Subject	Structure
Creator	Geyer, Alan R.
Date	1971

Triassic border fault (?)

Subject	Structure
Creator	Geyer, Alan R.
Date	1971

Triassic border fault (?)

Subject	Structure
Creator	Geyer, Alan R.
Date	1971

Triassic border fault (?)

Subject	Structure
Creator	Geyer, Alan R.
Date	1971

Triassic border fault (?)

Subject	Structure
Creator	Geyer, Alan R.
Date	1971

Triassic border fault (?)

Subject	Structure
Creator	Geyer, Alan R.
Date	1971

Triassic border fault (?)

Subject	Structure
Creator	Geyer, Alan R.
Date	1971

Triassic breccia

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-10-03

Triassic brownstone

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-05-09

Triassic brownstone

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-09-23

Triassic brownstone, Grist Mill Raceway

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-09-24

Triassic brownstone home of Daniel Boone

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1924-11-07

Triassic brownstone home of Daniel Boone built 1730

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1924-11-07

Triassic brownstone, railroad station

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-09-21

Triassic conglomerate

Subject	Stratigraphy-Weathering
Date	1921-07-01

Triassic conglomerate

Subject	State Parks
Creator	Bolles, William H.
Date	1970

Triassic conglomerate

Subject	Stratigraphy-Weathering
Date	1921-07-01

Triassic conglomerate

Subject	Sedimentation
Creator	Willard, Bradford, 1894-
Date	1932-08-19

Triassic conglomerate

Subject	State Parks
Creator	Bolles, William H.
Date	1970-10

Triassic conglomerate

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-04-14

Triassic conglomerate near base of Triassic

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-09-08

Triassic diabase dike

Subject	Field Conferences and Other Meetings
Creator	Graeber, Charles Karsner, 1896-
Date	1935-06-02

Triassic diabase forms gully behind wall in center of Pocono exposure south of Mt. Patrick.

Subject	Igneous and Metamorphic
Creator	Hoskins, Donald M.
Date

Triassic fanglomerate

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1934-04-17

Triassic fanglomerate, all limestone clasts

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

Triassic gray and brown sandstone and conglomerate

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-05-10

Triassic hills and Triassic lowland

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

Triassic, irregular bedding

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-10-03

Triassic, irregular bedding

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-10-03

Triassic limestone agglomerate

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-05-16

Triassic limestone fanglomerate

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

Triassic near contact

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-10-03

Triassic quartz pebble conglomerate

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1971-05-27

Triassic sandstone

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-04-22

Triassic sandstone

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-09-23

Triassic sandstone

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1937-05-18

Triassic sandstone

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1937-07-30

Triassic sandstone

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-09-24

Triassic sandstone

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1926-07-18

Triassic sandstone along Route 322

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1960

Triassic sandstone and conglomerate

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-10-03

Triassic sandstone barn

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1926-07-16

Triassic sandstone barn

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1926-07-16

Triassic sandstone barn

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1926-07-16

Triassic sandstone bridge

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1926-07-13

Triassic sandstone bridge over Conewago Creek

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1931-06-30