Pennsylvania Geological Survey - Historical Photographs

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  • Location Covered = Mifflin

About This Collection

This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
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Alexander Caverns
Alexander Caverns
Caves
Alexander Caverns, showing nests of calcite concretions.
Anticlinal
Anticlinal
Structure-Folds
Anticlinal, Lewistown, just east of station., Small anticline, Lewistown just east of station. July 1921
Anticline
Anticline
Structure-Folds
Anticline between poles 153-5 and 153-6 south of Mifflin.
Approaching ridge of Medina
Approaching ridge of Medina
Topography
Approaching ridge of Medina, Lewistown Narrows.
Bald Eagle Formation
Bald Eagle Formation
Stratigraphy
Bald Eagle Formation, Reedsville, Pa.
Bedding faces
Bedding faces
Stratigraphy
Bedding faces, Medina sandstone. Lewistown Narrows.
Between poles 153-7 and 153-8 below Mifflin
Between poles 153-7 and 153-8 below Mifflin
Structure-Folds
Between poles 153-7 and 153-8 below Mifflin.
Between poles 153-7 and 153-8 near Mifflin
Between poles 153-7 and 153-8 near Mifflin
Structure-Folds
Between poles 153-7 and 153-8 near Mifflin.
Broad anticline
Broad anticline
Structure-Folds
Broad anticline, pole 153-16 near Mifflin.
Broad syncline in Salina rocks
Broad syncline in Salina rocks
Structure-Folds
Broad syncline in Salina rocks, pole 153-16 just below Mifflin.
Broad syncline in Salina rocks
Broad syncline in Salina rocks
Structure-Folds
Broad syncline in Salina rocks, pole 153-15 below Mifflin.
Cave on Peachy Farm
Cave on Peachy Farm
Caves
Cave on Peachy Farm, Allensville., p. 102
Center of anticline
Center of anticline
Structure-Folds
Center of anticline, east of Lewistown., Center of anticline, east of Lewistown July 1921.
Christ Lutheran Church
Christ Lutheran Church
Cities, Towns, and Buildings
Christ Lutheran Church (1901), Lewistown. Hummelstown sandstone.
Close up of kilns
Close up of kilns
Nonmetallic Mineral Resources
Close up of kilns, Haws Refractories Company. Hawstone, Lewistown Narrows.
Close up of Oswego sandstone
Close up of Oswego sandstone
Stratigraphy
Close up of Oswego sandstone, Manns Narrows.
Contact between Tuscarora on right of center and Juniata left of center
Contact between Tuscarora on right of center and Juniata left of center
Stratigraphy, Sedimentation
Contact between Tuscarora on right of center and Juniata left of center, Mans Narrows.
Contact of Don and Do
Contact of Don and Do
Stratigraphy
Contact of Don and Do, a disconformity, at hammer. Basal Don here is black shale. A few inches of same at bottom contains reworked sand grains from underlying Do. On Pennsylvania Railroad (PRR) east of Newton Hamilton.
Contact of Don and Do, a disconformity at hammer
Contact of Don and Do, a disconformity at hammer
Stratigraphy
Contact of Don and Do, a disconformity at hammer. On Pennsylvania Railroad east of Newton Hamilton
Detail of kiln opening
Detail of kiln opening
Nonmetallic Mineral Resources
Detail of kiln opening, Haws Refractories Company. Hawstone, Lewistown Narrows.