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

Scenes accompanying removal of regional Mason and Dixon Line stone

Subject	Nonmetallic Mineral Resources

Scenes accompanying removal of regional Mason and Dixon Line stone

Subject	Nonmetallic Mineral Resources

Scenes accompanying removal of regional Mason and Dixon Line stone

Subject	Nonmetallic Mineral Resources

Schist on Interstate 83 south of York

Subject	Metamorphic Rocks
Creator	Geyer, Alan R.
Date	1970-04

School house, built of Catskill sandstone

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1922-08-10

Schuylkill Gap

Subject	Geomorphology
Creator	Willard, Bradford, 1894-
Date	1931-10-01

Schuylkill Gap from south

Subject	Geomorphology
Creator	Willard, Bradford, 1894-
Date	1931-10-01

Sculp and cleavage in slate quarry

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1923-07-18

Seawra Cave

Subject	Caves
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929

Second Mountain and water gap

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-07-30

Second Mountain at Dauphin

Subject	Topography
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1938-04-26

Second Mountain below Dauphin

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

Second Mountain from west shore

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1931-07-01

Second Mountain from west shore

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1931-07-01

Secretary and Mrs. Dewey

Subject	Field Conferences and Other Meetings
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1932-05-13

Secretary and Mrs. Dewey, Mrs. Ashley, and Vernon

Subject	Survey Staff
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-09

Secretary Dewey and Mrs. Ashley

Subject	Field Conferences and Other Meetings
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1932-05-15

Section including Freeport sandstone

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1928-05-23

Section in opening, base of Allegheny Group

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-09-25

Section of glacial hill cut by road

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-02-25

Section of gravel pit

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-07-18

Section of gravel pit

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-07-18

Section of sand pit (glacial)

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-09-21

Section of sand pit (glacial)

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-09-21

Section of sandstone, coal, and clay

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1924-08-12

Section of stripping on A' clay

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

Section of terrace beside road

Subject	Terrace Deposits
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-05-20

Sedimentation dam built downstream from dam construction

Subject	Environmental Geology
Creator	Geyer, Alan R.
Date	1971-05-27

Sediment pond constructed downstream from dam construction at Middle Creek Waterfowl area

Subject	Environmental Geology
Creator	Geyer, Alan R.
Date

Seen from camp on Lake Poponoming

Subject	Miscellaneous
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1922-08-05

Seisholtzville granite

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-09-26

Seisholtzville granite

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-09-26

Seisholtzville granite

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-09-26

Seisholtzville granite, St. Gabriel's Roman Catholic Church

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

Seisholtzville granite, St. Gabriel's Roman Catholic Church

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

Seisholtzville granite, Zion Lutheran Church

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-05-22

Seismograph work exploding 25 pounds nitro near Coudersport

Subject	Oil and Gas
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1932-05-14

Seismograph work near Coudersport

Subject	Oil and Gas
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1932-05-14

Seismograph work shooting 15 pounds nitro near Coudersport

Subject	Oil and Gas
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1932-05-14

Separating oil from water

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

Separating oil from water

Subject	Oil and Gas
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Series of sinkholes in cross-section along Interstate 80

Subject	Interstate Highway
Creator	Bolles, William H.
Date	1970

Series of sinkholes in cross-section along Interstate 80

Subject	Interstate Highway
Creator	Bolles, William H.
Date	1970

Series of sinkholes in cross-section along Interstate 80

Subject	Interstate Highway
Creator	Bolles, William H.
Date	1970

Serpentine

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1928-04-18

Serpentine

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1928-04-18

Serpentine

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1928-04-18

Serpentine, girls' dormitory, West Chester Normal School

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

Serpentine, gymnasium

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1927-07-27

Serpentine quarry

Subject	Mineralogy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1934-09-26