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

Glacial lake bench low terrace

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-07

Glacial moraine

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-02-24

Glacial moraine beside road

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-08-26

Glacial pothole near Archbald

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-07

Glacial sand pit

Subject	Glacial Geology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1933-10-03

Glacial smoothing and scratching on Coal Measures sandstone

Subject	Glacial Geology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1931-08-15

Glacial topography

Subject	Glacial Geology
Creator	Shepps, Vincent C. (Vincent Chester), 1928-

Granite boulders, Hickory Run

Subject	Glacial Geology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1926-10-02

Granite erratics near Jamesville

Subject	Glacial Geology
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1933-10-02

Gravel and silt covered plain

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-08-02

Gravel at bottom of filling in old pre-Illinoian channel of Monongahela River

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

Gravel near base of sediments in Monongahela early glacial channel

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-10-06

Gravel near base of sediments in Monongahela early glacial channel

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-10-06

Gravel near base of sediments in Monongahela early glacial channel

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-10-06

Gravel pit near Dickville

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-07-01

Hummocky glacial topography

Subject	Glacial Geology
Creator	Corbin, J. Ross
Date	1925-11-04

Illinoian sand and gravel

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1927

Illinoian till at 680 feet

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1934-08

Illinois moraine

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-02-01

Kame at Blakely

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-07

Kame near Blakeley

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-07

Kame topography

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1937-08

"Lafayette" gravels

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

Lake Cowanesque bed west of Elkland

Subject	Glacial Geology
Creator	Willard, Bradford, 1894-
Date	1931-08-01

Lake Cowanesque Dam

Subject	Glacial Geology
Creator	Willard, Bradford, 1894-
Date	1931-08-01

Lake Cowanesque delta-fan from south looking toward Nelson

Subject	Glacial Geology
Creator	Willard, Bradford, 1894-
Date	1931-08-01

Lake Cowanesque delta-fan from west

Subject	Glacial Geology
Creator	Willard, Bradford, 1894-
Date	1931-08-01

Lake Warren

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-07-30

Lake Warren sands

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-07-31

Lake Warren sands

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-07-31

Little Marsh spillway

Subject	Glacial Geology
Creator	Willard, Bradford, 1894-
Date	1931-08-01

Little Marsh spillway of Lake Cowanesque

Subject	Glacial Geology
Creator	Willard, Bradford, 1894-
Date	1931-08-01

Long, narrow ridge of drift, exposed where Middle Branch cuts it

Subject	Glacial Geology
Creator	Graeber, Charles Karsner, 1896-
Date	1934

Looking north across Lake Warren flat

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-08-03

Looking north toward Nescopeck Mountains

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

Looking south across Whittlesey Lake bottom toward Belmore Beach

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-08-03

Low terrace (715 feet above tide) escarpment of upper terrace at right.

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

Mendenhall Glacier

Subject	Glacial Geology
Creator	Socolow, Arthur A.
Date	1952

Middle Branch

Subject	Glacial Geology
Creator	Graeber, Charles Karsner, 1896-
Date	1934-08-14

Mine cave through terrace, glacial silt on top

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-07

Morainal topography near Olyphant

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-07-01

Moraine along Loyalsock

Subject	Glacial Geology
Creator	Moyer, Forrest Theodore, 1906-

Moraine along Loyalsock

Subject	Glacial Geology
Creator	Moyer, Forrest Theodore, 1906-

Moraine at Russell, north of Warren

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1942-05

Moraine west of Tioga

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1937-08

Morainic deposit just west of New Milford

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1929-08-26

Morainic hills

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-02-24

North slope Lake Cowanesque delta-fan

Subject	Glacial Geology
Creator	Willard, Bradford, 1894-
Date	1931-08-01

Nose of Mendenhall Glacier showing decaying ice, moraine, and outwash

Subject	Glacial Geology
Creator	Socolow, Arthur A.
Date	1952

Outwash plain along Loyalsock

Subject	Glacial Geology
Creator	Moyer, Forrest Theodore, 1906-