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

Mining face, Williams Talc Quarry

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-07-31

Mining limestone for lime and road metal

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

Mining Lowville limestone (bedding face in Rodman)

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

Minor anticline in Martinsburg shale close to contact with Medina

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

Minor fold in quartzite bed of Peters Creek Formation

Subject	Structure-Folds
Creator	Inners, Jon D.
Date	1972-12

Minor folds in Cambrian limestone

Subject	Structure-Folds
Creator	Geyer, Alan R.
Date	1956

Model coal mining town

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

Modern lime kilns

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

Molding sand, Brennan Brothers

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

Molding sand deposit formerly operated by West Penn Sand Company of Indiana

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

Molding sand deposit of Gratztown Sand Company

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

Molding sand dock and mill

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

Molding sand dug by Lewis Kemp on flood plane of Lehigh River

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

Molding sand dug by Lewis Kemp on flood plane of Lehigh River

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

Molding sand on Bayler farm

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

Molding sand pit (l-H) of Walker Sand Company

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

Molding sand pit of J. K. McIntire

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

Molding sand pit of J. K. McIntire (lower deposit)

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

Molding sand pit of W. W. Gulich on land of State Hospital

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

Molding sand pit on J. L. Pfaff farm

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

Molding sand pit on J. L. Pfaff farm

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

Molding sand property of Walker Sand Company

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

Monighan walking dragline excavator in coal stripping

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

Monighan walking dragline excavator in coal stripping

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

Monighan walking dragline excavator in coal stripping

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

"Monkey drift"

Subject	Mineral Resources-Coal
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1915

Monocacy Creek above water works

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

Monoclinal flexure

Subject	Stratigraphy
Creator	Willard, Bradford, 1894-
Date	1934-07-01

Monocline in Cockeysville limestone

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

Monongahela River

Subject	Rivers and Streams
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Monongahela River

Subject	Surface Water
Creator	Hickok, W. O. (William Orville), 1905-
Date	1934-07-01

Monongahela River, bluff and ferry

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

Monongahela River upstream

Subject	Rivers and Streams
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date

Monongahella River and river tow

Subject	Topography

Montebello sandstone

Subject	Stratigraphy
Creator	Moseley, John Reed

Montebello Sandstone Member of Mahantango Formation

Subject	Stratigraphy
Creator	Inners, Jon D.
Date	1974-03

Montour Steam Generating Plant

Subject	Environmental Geology
Creator	Bolles, William H.
Date	1971

Monument at Drake Well

Subject	Oil and Gas
Creator	Corbin, J. Ross

Monument, Second and State Street

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

Monument stone

Subject	Miscellaneous
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1924-04-01

Monument stone

Subject	Miscellaneous
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1924-04-01

Monument stone

Subject	Miscellaneous
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1926-04-01

Monument stone

Subject	Miscellaneous
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1924-04-01

Monument stones

Subject	Miscellaneous
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1924-04-01

Monument stones, Oriskany sandstone (?)

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

Morainal topography

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-10-19

Morainal topography

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-10-19

Morainal topography

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-10-19

Morainal topography

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-10-19

Morainal topography

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-10-19