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

Bald Eagle conglomerate

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Conestoga Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Cross-section of sinkholes

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Derry Township sanitary landfill

Subject	Environmental Geology
Creator	Bolles, William H.
Date	1970

Diabase float from dike

Subject	Engineering Geology
Creator	Bolles, William H.
Date	1970

Diabase float from dike

Subject	Engineering Geology
Creator	Bolles, William H.
Date	1970

Excavation of diabase sheet

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date	1970

Gastropoda

Subject	Fossils
Date	1970

Highway cut in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Interstate 83, Interstate 283, U.S. 322/422 interchange

Subject	Interstate Highway
Creator	Geyer, Alan R.
Date	1970

Interstate 83, Interstate 283, U.S. 322/422 interchange

Subject	Interstate Highway
Creator	Geyer, Alan R.
Date	1970

Interstate 83, Interstate 283, U.S. 322/422 interchange

Subject	Interstate Highway
Creator	Geyer, Alan R.
Date	1970

Interstate 83, Interstate 283, U.S. 322/422 interchange

Subject	Interstate Highway
Creator	Geyer, Alan R.
Date	1970

Interstate 83, Interstate 283, U.S. 322/422 interchange

Subject	Interstate Highway
Creator	Geyer, Alan R.
Date	1970

Kinzers shale outcrop

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Large cut in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Large highway cut in Juniata Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Local limestone used for Founders Hall, Hershey Estates

Subject	Cities, Towns, and Buildings
Creator	Bolles, William H.
Date	1970

Mariopteris, Pennsylvanian coal fossil

Subject	Fossils
Creator	Bolles, William H.
Date	1970

Martinsburg at Swatara Gap

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Millard Quarry

Subject	Nonmetallic Mineral Resources
Creator	Geyer, Alan R.
Date	1970

Milton Hershey School, new park

Subject	Cities, Towns, and Buildings
Creator	Geyer, Alan R.
Date	1970

Pennsylvanian siltstones, sandstones, and shales

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970

Pinnacle weathering of limestone

Subject	Geomorphology
Creator	Bolles, William H.
Date	1970

Plunging anticline, south of Tower City

Subject	Structure
Creator	Bolles, William H.
Date	1970

Quarry in Cockeysville

Subject	Nonmetallic Mineral Resources
Creator	Geyer, Alan R.
Date	1970

Sanitary landfill

Subject	Sanitary Landfills
Creator	Bolles, William H.
Date	1970

Sanitary landfill

Subject	Sanitary Landfills
Creator	Bolles, William H.
Date	1970

Sanitary landfill north of Millard's Quarry

Subject	Sanitary Landfills
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

Series of sinkholes in cross-section along Interstate 80

Subject	Interstate Highway
Creator	Bolles, William H.
Date	1970

Silurian trilobite

Subject	Fossils
Date	1970

Sinkholes at Milton Hershey Medical Center

Subject	Sinkholes
Creator	Bolles, William H.
Date	1970

Slide on Route 322 near Cornwall

Subject	Landslides
Creator	Bolles, William H.
Date	1970

Spring house

Subject	Groundwater
Creator	Geyer, Alan R.
Date	1970

Talus along I-80 west of White Deer, mile 201 & 1400

Subject	Interstate Highway
Creator	Bolles, William H.
Date	1970

Talus along I-80 west of White Deer, mile 201 & 1400

Subject	Interstate Highway
Creator	Bolles, William H.
Date	1970

Tree wedging in diabase

Subject	State Parks
Creator	Bolles, William H.
Date	1970

Triassic conglomerate

Subject	State Parks
Creator	Bolles, William H.
Date	1970

Triassic sandstone conglomerate

Subject	State Parks
Creator	Bolles, William H.
Date	1970

Triassic sandstone conglomerate

Subject	State Parks
Creator	Bolles, William H.
Date	1970

Triassic sandstone conglomerate

Subject	State Parks
Creator	Bolles, William H.
Date	1970