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

Drainless basin

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-10-19

Drainless basin

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-10-19

Drainless basin mantled with Illinoian till

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1934-08

Drainless basin mantled with Illinoian till

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1934-08

Dr. Ashley lecturing members of party

Subject	Field Conferences and Other Meetings
Date	07-20-1940

Dredging for coal and filling coal boats

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

Dressing curbstone at White Haven Stone Products Company quarry

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

Dressing curbstone at White Haven Stone Products Company quarry

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

Dressing "Gettysburg granite" for monument base (trap)

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

Dr. Hogue Quarry

Subject	Nonmetallic Mineral Resources
Creator	Robinson, J. French, 1890-
Date	1920

Drift escarpment

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

Drift of old clay mine, Harbison-Walker Company

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

Drift scope

Subject	Airborne Surveys
Creator	Geyer, Alan R.
Date	1957

Drilling for coal

Subject	Mineral Resources-Coal
Date	1943-08-07

Drilling for coal

Subject	Mineral Resources-Coal
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1943-08-07

Drilling for oil

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

Drilling for oil near Lyndell Mills

Subject	Oil and Gas

Drilling for oil near Lyndell Mills

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

Drilling for stripping

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-05-23

Drilling rig on Carson Farm

Subject	Oil and Gas
Creator	Johnson, Meredith E., 1897-
Date	1923-05-01

Drilling well at edge of dry territory

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

Dripstone in Hi-wa-may Cavern

Subject	Caves
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1931-06-03

Dr. Martin's home

Subject	Staff of Survey Cities, Towns, and Buildings
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Dr. Martin's home

Subject	Staff of Survey Cities, Towns, and Buildings
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Dr. Martin's home

Subject	Staff of Survey Cities, Towns, and Buildings
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Dr. Miller's farm on Monocacy Creek

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

Dr. Miller's farm on Monocacy Creek

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

Dr. S. A. Hogue Quarry

Subject	Stratigraphy
Creator	Robinson, J. French, 1890-
Date	1920

Dr. Willard

Subject	Staff of Survey
Date	1931-08-01

Drying kiln

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1932-05-28

Dry playa

Subject	Geomorphology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-08-02

Dubbs cracking still

Subject	Oil and Gas
Creator	Shaffner, Marchant N. (Marchant Nissley), 1897-1990
Date	1937-05-28

Dulany Cave

Subject	Caves
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1930-04-03

Dump of the Filbert Mine

Subject	Mineral Resources-Coal
Creator	Hickok, W. O. (William Orville), 1905-
Date	1934-06-01

Duncannon Member of the Catskill Formation

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1962

Dunning Creek at Cessna

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-07-14

Dunning Mountain, Medina sandstone talus

Subject	Topography
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1922-10-13

Duquesne coal

Subject	Stratigraphy
Creator	Schoeneck, P. S.
Date	Summer 1921

Durham Cave

Subject	Caves
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1932-05-28

Early glacial deposit

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

Early glacial deposit just off from Susquehanna Trail

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

Early glacial deposit just off from Susquehanna Trail

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

East bank at Edgerton Colliery (abandoned)

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

East end "Middle Hill" pit, Cornwall

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

East face of Colonial Slate Company

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1928-04-26

East footer for dam at Nockamixon State Park

Subject	State Parks
Creator	Bolles, William H.
Date	1969

East from Chickies Rock

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

East Kittatinny Mountain tunnel

Subject	Engineering Geology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1938-11-29

East Kittatinny tunnel

Subject	Engineering Geology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1938-11-29

East of Gallitzin

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