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

Anticlinal

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

Approaching ridge of Medina

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

Bedding faces

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

Cement plant

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01

Center of anticline

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

"Clinton" red shales

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

"Clinton" Shale and sandstone beds

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

Decomposed Triassic conglomerate

Subject	Stratigraphy-Weathering
Date	1921-07-01

Decomposed Triassic conglomerate at 400 feet above tide

Subject	Stratigraphy-Weathering
Date	1921-07-01

Details of weathered limestone quarry

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

General view of cement limestone quarry

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

Juniata River and bluffs

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

Lewistown

Subject	Cities, Towns, and Buildings
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01

Lewistown Narrows

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

Lewistown Narrows

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

Lewistown Narrows

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

Lewistown Narrows

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

Lewistown Narrows

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

Lewistown Narrows looking down

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

Limestone storage

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01

Massive Conemaugh sandstone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1921-07-01

Mining limestone for lime and road metal

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

Mud cracks

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

No. 2 mill of Atlas Cement Company

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01

Outcrop of Triassic conglomerate ledge

Subject	Stratigraphy
Date	1921-07-01

Pittsburgh limestone, chute from Pittsburgh coal entry

Subject	Nonmetallic Mineral Resources
Creator	Johnson, Meredith E., 1897-
Date

Quarrying limestone for lime and lime kilns

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

Quarrying limestone for lime and road metal

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

Quarrying limestone for lime and road metal

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

Quarry of Atlas Cement Company

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-07-01

Road beside Lobb's Run

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

Salina strata highly inclined and folded

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

Sharp syncline

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

Steeply folded strata

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

Steeply folded strata

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

Steeply inclined and folded rocks

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

Syncline near pole 153-10

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

Talus Medina sandstone

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

Topography across valley from cemetery

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

Triassic conglomerate

Subject	Stratigraphy-Weathering
Date	1921-07-01

Triassic conglomerate

Subject	Stratigraphy-Weathering
Date	1921-07-01

Valley of Monongahela

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

Wayside spring

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