Pennsylvania Geological Survey - Historical Photographs

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  • Date = 1923-08-21

About This Collection

This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
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Abandoned coke ovens
Nonmetallic Mineral Resources
Abandoned coke ovens north of east portal of Gallitzin Tunnel., 18-7
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Allegheny Front
Topography
Allegheny Front, view east of south hill. From near location of card #1115., 18-22
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Apparent unconformity in Burgoon sandstone
Stratigraphy
Apparent unconformity in Burgoon sandstone, just at east edge of Ebensburg sheet., 18-20
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Approaching Horseshoe Curve from south
Topography
Approaching Horseshoe Curve from south., 18-28
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At base of (Mauch Chunk) (?) crossbedded sandstone etc.
Stratigraphy
At base of (Mauch Chunk) (?) crossbedded sandstone etc. Some of sandstone is quartz conglomerate. Near Allegrippus., 18-13
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Base of Catskill (at left of figure) top of Chemung (right)
Stratigraphy
Base of Catskill (at left of figure) top of Chemung (right). Chemung fossiliferous (no bright red), a characteristic ferruginous bed near top traceable, two miles below Horseshoe Curve
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"Bracken fern"
Topography
"Bracken fern," Sta. no. 24, Pennsylvania Railroad above Horseshoe Curve., 18-24
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Brick plant using Portage shale
Nonmetallic Mineral Resources
Brick plant using Portage shale, northern edge of Hollidaysburg quadrangle., 18-40
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Catskill shale
Stratigraphy
Catskill shale, one half mile below Horseshoe Curve., 18-32
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Catskill shale and sandstone (near base)
Stratigraphy
Catskill shale and sandstone (near base), two miles below Horseshoe Curve., 18-34
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Connoquenessing sandstone (?)
Stratigraphy
Connoquenessing sandstone (?) at bend due west from Allegrippus., 18-12
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Eighty foot sandstone in Mauch Chunk
Stratigraphy
Eighty foot sandstone in Mauch Chunk, just west of Allegrippus., 18-15
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Fault in Chemung rocks
Stratigraphy
Fault in Chemung rocks, three miles below Horseshoe Curve., 18-37
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Homewood sandstone filling of old channel cutting out Mercer shale (fossils) and into Connoquenessing sandstone
Topography
Homewood sandstone filling of old channel cutting out Mercer shale (fossils) and into Connoquenessing sandstone, Station no. 10, Pennsylvania Railroad above Horsehoe Curve., 18-10; hand-drawn illustration (below photograph).
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Loyalhanna limestone 40 feet thick cross-bedded siliceous limestone (lower half of rock exposure)
Stratigraphy
Loyalhanna limestone 40 feet thick cross-bedded siliceous limestone (lower half of rock exposure), Allegrippus., 18-16; use lens to see details.
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Loyalhanna limestone and Burgoon sandstone 300 feet
Stratigraphy
Loyalhanna limestone and Burgoon sandstone 300 feet (20 feet at left, 60 feet at east), Allegrippus., 18-19
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Loyalhanna limestone (upper half of rock exposure) in contact with top of Pocono sandstone
Stratigraphy
Loyalhanna limestone (upper half of rock exposure) in contact with top of Pocono sandstone, Allegrippus., 18-17
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Mercer shale, Homewood sandstone above Connoquenessing below
Stratigraphy
Mercer shale, Homewood sandstone above Connoquenessing below, from just west of Bennington., 18-9
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Portage shale along main line of Pennsylvania Railroad
Stratigraphy
Portage shale along main line of Pennsylvania Railroad. On dividing line between Holidaysburg and Altoona., 18-39
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Sandstone cliff (Burgoon?)
Stratigraphy
Sandstone cliff (Burgoon?) at Horseshoe Curve., 18-29
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