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

Penn Silicon Company quarry

Subject	Nonmetallic Mineral Resources
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1924-08-18

Pennsylvania Academy of Science Summer Meeting

Subject	Field Conferences and Other Meetings
Creator	Hickok, W. O. (William Orville), 1905-
Date

Pennsylvania Academy of Science Summer Meeting

Subject	Field Conferences and Other Meetings
Creator	Hickok, W. O. (William Orville), 1905-
Date

Pennsylvania and Reading Railroad bridges

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

Pennsylvania flagstone

Subject	Cities, Towns, and Buildings
Creator	Barnsley, E. R.
Date	1932-01-12

Pennsylvania flagstone

Subject	Cities, Towns, and Buildings
Creator	Barnsley, E. R.
Date	1932-01-12

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Game Commission Middle Creek Wildlife Management Area

Subject	Engineering Geology
Creator	Geyer, Alan R.
Date

Pennsylvania Geological Field Conference examining Juniata formation

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

Pennsylvania Main Line

Subject	Economic Geology
Creator	Johnson, Meredith E., 1897-
Date	1922-11-01

Pennsylvania marble (Bakers)

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

Pennsylvania - New York Field Conference

Subject	Field Conferences and Other Meetings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date

Pennsylvanian siltstones, sandstones, and shales

Subject	Stratigraphy
Creator	Bolles, William H.
Date

Pennsylvania Railroad Bridge at Susquehanna Gap

Subject	Surface Water
Creator	Willard, Bradford, 1894-
Date

Pennsylvania roads

Subject	Interstate Highway
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Pennsylvania Triassic sandstone

Subject	Cities, Towns, and Buildings
Creator	Barnsley, E. R.
Date

Pennsylvania Triassic sandstone

Subject	Cities, Towns, and Buildings
Creator	Barnsley, E. R.
Date

Pennsylvania Turnpike

Subject	Interstate Highways and Other Roads
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date

Pens outline two fold hinges, Epler Formation

Subject	Structure
Creator	Root, Samuel I.
Date	1972-09-21

Peoples Natural Gas (P.N.G.) Company compresor station

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

Peoples Natural Gas (P.N.G.) Company pump station

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

Peoples Natural Gas (P.N.G.) Company's Ripple Well

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

Peoples Natural Gas (P.N.G.) Company Station (endview)

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

Perkasie Member of Brunswick Formation

Subject	Stratigraphy
Creator	Inners, Jon D.
Date	1973-03

Perkiomen Creek

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

Peters Creek Schist

Subject	Stratigraphy
Creator	Geyer, Alan R.

Peters Creek Schist

Subject	Stratigraphy
Creator	Geyer, Alan R.

Peters Creek Schist

Subject	Stratigraphy
Creator	Geyer, Alan R.

Philadelphia Company gas well no. 3121 (note connections)

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

Philips Quarry

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

Philips Quarry

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

Philips Quarry

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

Philips Quarry

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

Photograph showing specially, fractured rock

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

Photograph to show distortion of fine laminae of rock

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

Pickands-Mather coal mine

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