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Pennsylvania Geological Survey - Historical Photographs - Browse all items - Pennsylvania Photos and Documents

Martinsburg limestone quarry

Subject	Stratigraphy
Creator	Moseley, John Reed
Date	1950-08

Martinsburg shale

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1973-05-10

Martinsburg shale

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1973-05-10

Martinsburg "shale"

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1972-11

Martinsburg shale contact

Subject	Stratigraphy
Creator	Hughes, H. Herbert (Harry Herbert), 1905-
Date	1928-02-01

Martinsburg shale hills

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-08-28

Martinsburg shale or slate

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-07-29

Martinsburg shale slumping on hill

Subject	Stratigraphy
Creator	Moseley, John Reed

Martinsburg shale with overlying gravel

Subject	Stratigraphy
Creator	Hughes, H. Herbert (Harry Herbert), 1905-
Date	1928-02-01

Massive Conemaugh sandstone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1921-07-01

Massive Gettysburg sandstone ledges

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

Massively-bedded sandstone

Subject	Stratigraphy
Creator	Moseley, John Reed
Date	1950-08

Massive Morgantown sandstone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1921-09-30

Massive Morgantown sandstone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1921

Massive rock

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-08-23

Mauch Chunk conglomerate

Date
Subject	Stratigraphy Sedimentation
Creator	Willard, Bradford, 1894-

Mauch Chunk Formation

Subject	Stratigraphy
Creator	McGlade, William G.

McKenzie Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-05-22

McKenzie Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-05-22

McKenzie Formation

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1971

McKenzie Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1970-05-22

McKenzie Formation

Subject	Stratigraphy
Creator	Bolles, William H.
Date	1971

Medina sandstone float

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1929-05-09

Medina sandstone forming Blue Mountain

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

Mercer shale along Route 28

Subject	Stratigraphy
Creator	Graeber, Charles Karsner, 1896-
Date	1933-06-24

Mercer shale, Homewood sandstone above Connoquenessing below

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-08-21

Mercer shales exposed along Route 28

Subject	Stratigraphy
Creator	Graeber, Charles Karsner, 1896-
Date	1933-06-24

Mercer shales overlain by Homewood sandstone

Subject	Stratigraphy
Creator	Graeber, Charles Karsner, 1896-
Date	1933-06-24

Middle Kittanning and strata

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-08-06

Middle member of Martinsburg

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

Mifflin Coal and Sandstone

Subject	Stratigraphy
Creator	Cleaves, Arthur B. (Arthur Bailey), 1905-1985
Date	1936-08

Millbach Formation

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1956

Millbach Formation

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1956

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	1922-06-02

Montebello sandstone

Subject	Stratigraphy
Creator	Moseley, John Reed

Montebello Sandstone Member of Mahantango Formation

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

Morgantown red beds and top of Birmingham shale

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1921-11-01

Morgantown sandstone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1925-05-16

Morgantown sandstone

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1921-09-01

Morgantown sandstone and sub-jacent strata

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-06-07

Morgantown Sandstone at the top of the slope

Subject	Stratigraphy
Creator	Craft, Jesse L.

Morgantown sandstone quarry

Subject	Stratigraphy
Creator	Johnson, Meredith E., 1897-
Date	1925-05-16

Mountain wash gravel in railroad cut

Subject	Stratigraphy
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1925-06-03

Mount Dallas cut

Subject	Stratigraphy
Creator	Foose, Richard Martin, 1915-
Date	1941-10

"Mud Rollers?" in Martinsburg limestone

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1937-07

Myerstown Formation

Subject	Stratigraphy
Creator	Geyer, Alan R.
Date	1968

Narrows of Sugar Creek

Subject	Stratigraphy
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1932-05-13

National Pike

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

National Pike

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