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

Tinsman quarry

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-08-01

Top of cryptozoons

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

Top of small cryptozoons

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

To show amount of stripping (glacial)

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-08-01

To show relation of soft slate zone to Blue Mountains

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

To show shattered face of rock far back of intended face

Subject	Structure-Faults
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-01-13

To show size of block hoisted

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-08-01

Underground quarrying of slate

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-10-15

Upper part of lower quarry

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

View across Delaware River from Williams Talc Quarry

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

View from panorama point between Bangor and Portland

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1932-05-29

View of face of Williams Talc Mine

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

View of Williams Talc Quarry from south end

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

View showing face of quarry and splitting houses

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

Waste slate

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-08-01

Waste slate

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-08-01

Waste slate dump

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-08-01

Waste slate stacked, large slab coming up

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-01-08

Williams Talc Quarry

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

Williams Talc Quarry from northeast

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

Wind Gap

Subject	Geomorphology
Creator	Willard, Bradford, 1894-
Date	1932-07-01

Wind Gap

Subject	Geomorphology
Creator	Willard, Bradford, 1894-
Date	1932-07-01

Wind Gap and "the Big Offset" (at right)

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1924-08-01

Wind Gap marker

Subject	Geomorphology
Creator	Willard, Bradford, 1894-
Date	1931-10-01

Wisconsin stratified drift near mouth of Martins Creek

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1932-05-29

Wrinkled slate in quarry at Berlinsville

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

Wrinkled slate in quarry at Berlinsville

Subject	Nonmetallic Mineral Resources
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1925-10-15

Wygadt cut

Subject	Structure
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-01-05

Wygadt cut

Subject	Structure
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-01-13

Wygadt cut

Subject	Structure
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-01-05

Wygadt cut

Subject	Structure
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-01-13

Wygadt cut

Subject	Structure
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1933-01-05