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Pennsylvania Geological Survey - Historical Photographs - Browse all items - Pennsylvania Photos and Documents

Abandoned quarry in folded Helderberg limestone

Subject	Structure-Folds
Creator	Willard, Bradford, 1894-
Date	1934-09-26

Abandoned quarry in folded Helderberg limestone

Subject	Structure-Folds
Creator	Willard, Bradford, 1894-
Date	1934-09-26

An abandoned quarry in folded Helderberg limestone

Subject	Structure-Folds
Creator	Willard, Bradford, 1894-
Date	1934-09-26

Anticlinal

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01

Anticlinal nose in Setters Formation plunging under Cockeysville Marble.

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

Anticline

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Anticline bringing up Onondaga limestone

Subject	Structure-Folds
Creator	Willard, Bradford, 1894-
Date	1933-09-01

Anticline, in bright sun

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

Anticline in Lerch Quarry

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-07-30

Anticline in limestone quarry

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

Anticline, in shadow cavity

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

Anticline in slate quarry

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-10-15

Bellefonte Lime Company

Subject	Structure-Folds
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1923-07-11

Bent strata

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-04-23

Between poles 153-7 and 153-8 below Mifflin

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Between poles 153-7 and 153-8 near Mifflin

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Bloomsburg red bed

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1927-10-11

Broad anticline

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921

Broad syncline in Salina rocks

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Broad syncline in Salina rocks

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Center of anticlinal nose in Setters Formation (Precambrian)

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

Center of anticline

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01

Chickies Cliff (anticlinal)

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

Close folding, Catskill strata

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

Close folding, Catskill strata

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

Close folding of limestone and dolomite in quarries southeast of Northampton

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

Close folding of limestone and dolomite in quarries southeast of Northampton

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

Close folding of limestone and dolomite in quarries southeast of Northampton

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

Close folding of rocks

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-07-17

Complex folding, Epler Formation

Subject	Structure-Folds
Creator	Geyer, Alan R.
Date	1953

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

Contorted beds on Juniata Highway

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-10

Contorted beds on Juniata Highway

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-10

Contorted beds on Juniata Highway

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-10

Contorted beds on Juniata Highway

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-10

Contorted beds on Juniata Highway

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-10

Contorted beds on Juniata Highway

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-10

Contorted beds on Juniata Highway

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-10

Contorted beds on Juniata Highway

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-10

Cove Mountain

Subject	Structure-Folds
Creator	Geyer, Alan R.

Cove Mountain

Subject	Structure-Folds
Creator	Geyer, Alan R.

Cove Mountain

Subject	Structure-Folds
Creator	Geyer, Alan R.

Crushed, overturned anticline

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-04-23

Cryptozoon in overturned strata

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

Detail of anticlinal nose in Setters Formation

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1922-06-03

Dipping and slightly fractured Bellefonte strata

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-04-23

Distorted strata, Cambria-Ordovician limestone

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-10-15

Dolomite quarry

Subject	Structure-Folds
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