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

General view of slate quarry

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

General view of Wygadt cut

Subject	Structure
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-01-13

General view, quarry at Union Furnace

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

General view to east from middle of Elk Run quarries

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

General view west

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-08-22

General view, Williams Talc Quarry (note figures)

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

Geological monument

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1922-10-14

Geological monument (detail of base)

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

Geological Survey Library

Subject	Survey Staff
Creator	Koppe, Edwin F.
Date	1957

Geological Survey State Lab

Subject	Miscellaneous
Creator	Koppe, Edwin F.
Date	1957

Geologic field work in the old days

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

Geologists of Pennsylvania Excursion, May 30, 1931

Subject	Field Conferences and Other Meetings
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date

Geologists working out stratigraphic correlations

Subject	Survey Staff
Date	1940-07-20

George H. Ashley measuring coal

Subject	Mineral Resources-Coal
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1942-08

George Pratt bluestone quarry

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-05-28

George R. Cope pointing to reptile tracks in Triassic rocks

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

George Ready molding sand pit

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1924-08-21

Gettysburg battlefield and Pennsylvania Monument

Subject	State Parks
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date

Gettysburg plain and Pigeon Hills

Subject	Topography
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-04-29

Gettysburg plain from Pigeon Hills

Subject	Topography
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-04-28

Gettysburg shale

Subject	Stratigraphy
Creator	Hickok, W. O. (William Orville), 1905-
Date	1932-06-01

Gettysburg shale

Subject	Stratigraphy
Creator	Hickok, W. O. (William Orville), 1905-
Date	1932-06-01

Girl Scout Camp Council fire

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

Girty's Cave

Subject	Caves
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1930-09-04

Girty's Face

Subject	Geomorphology
Creator	Willard, Bradford, 1894-
Date	1930-11-01

Glacial boulders, granite and gneiss

Subject	Economic Uses
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1928-10-10

Glacial boulders, mostly sandstone

Subject	Glacial Geology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-09-24

Glacial cobbles in Catholic chapel

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

Glacial deposit on Highway Route No. 2

Subject	Glacial Geology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-09-28

Glacial drift

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-04-01

Glacial drift overlying slate pit

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-10-14

Glacial drift over Old Bangor quarry

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-04-01

Glacial drift over slate quarry

Subject	Glacial Geology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1923-07-19

Glacial drift over slate quarry

Subject	Glacial Geology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1923-07-19

Glacial gravel

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-09-01

Glacial gravel bank

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1924-08-28

Glacial gravel beside highway

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

Glacial gravel overlying slate quarry

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

Glacial gravel pit

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-09-01

Glacial gravel pit

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-09-01

Glacial gravel pit and bench

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-09-01

Glacial gravel pit and bench above hill east of east part of Warren

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

Glacial gravels

Subject	Glacial Geology
Creator	Geyer, Alan R.
Date	1970-07

Glacial grooves at silica sand quarry

Subject	Glacial Geology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1928-10-10

Glacial grooves (east-west) on sandstone

Subject	Glacial Geology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1924-08-18

Glacial hill cut through by road

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-02-24

Glacial lake bench and floor Route 20

Subject	Glacial Geology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1933-10-01

Glacial lake bench low terrace

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-07

Glacial moraine

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-02-24

Glacial moraine beside road

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-08-26