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

Base of pier failure in limestone collapse

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date	197?

Base of pier failure in limestone collapse

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date	197?

Base of pier failure in limestone collapse

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date	197?

Base of pier failure in limestone collapse

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date	197?

Beekmantown limestone

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-09-13

Beekmantown limestone

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

Breccia, limestone and quartz -Triassic

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

Bridge over failure due to collapse of leached limestone zone along fault

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date	1968

Burkholder limestone quarry

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-06-16

Burkholder quarry along Conestoga Creek

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

Channel in bed of Susquehanna River

Subject	Surface Water
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1930-10-03

Channel in bed of Susquehanna River

Subject	Surface Water
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1930-10-03

Characteristic alternation of sandstone and shale

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

Chickies Cliff (anticlinal)

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

Chickies micaceous quartzite used as flags

Subject	Economic Uses
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-06-16

Chickies quartzite from Greentree Quarry

Subject	Economic Uses
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-06-16

Chickies quartzite from Greentree Quarry near Quarryville

Subject	Economic Uses
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-06-16

Chickies (?) quartzite, silica sand pit of A. C. Bowers & Sons

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

Christian Herr House

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-04-11

Christian Herr House on David Hoover farm

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-04-11

Chromite area

Subject	Mineralogy
Creator	Foose, Richard Martin, 1915-
Date	1941-11-05

Chromite in Wood Mine

Subject	Mineralogy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1938-02-03

Chromite in Wood Mine

Subject	Mineralogy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1938-02-03

Clay and shale pit, United Clay Brick Company

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

Cliff in Peters Creek Formation grading into Tucquan schist

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

Cliff of Peters Creek Formation

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

Conestoga Creek

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

Conestoga Creek at Brownstown

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-04-15

Conestoga Creek at Brownstown

Subject	Miscellaneous
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-04-15

Conestoga Creek at Brownstown

Subject	Miscellaneous
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-04-15

Conestoga Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Conestoga limestone

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1934-09-27

Conestoga Valley section

Subject	Topography
Creator	Geyer, Alan R.
Date	1969

Conewago Creek Valley

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1922-08-17

Contorted bedding in limestone quarry

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

Contorted bedding in limestone quarry

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

Courthouse wings

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

Covered bridge in Lancaster County

Subject	Cities, Towns, and Buildings
Creator	Geyer, Alan R.
Date	1951

Detail of slate quarry

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

Details in Peters Creek Formation in railroad cut

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

Diabase boulders

Subject	Boulder Field
Creator	Bolles, William H.
Date	1971-09

Dolomite quarry

Subject	Structure-Folds
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-05-03

Dolomite quarry

Subject	Structure
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-05-03

Dolomite quarry, folded strata

Subject	Structure-Folds
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-05-03

Drag fold in Conestoga limestone along Route 72 at Lynden

Subject	Structure-Folds
Creator	Geyer, Alan R.
Date	1960

Drilling for oil

Subject	Oil and Gas
Creator	Robinson, J. French, 1890-

East from Chickies Rock

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1922-10-11

Eli Shreiner's quarry of Beekmantown limestone

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

Eshelman's Quarry

Subject	Nonmetallic Mineral Resources
Creator	Bolles, William H.

Eshelman's Quarry

Subject	Nonmetallic Mineral Resources
Creator	Bolles, William H.