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Geology Club, The University of Iowa, January 26, 1942
Geology Club, The University of Iowa, January 26, 1942
Gorge in Trenton Limestone at Pinney's Spring, Iowa, late 1890s or early 1900s
Located in Twp. 95, R.V. Section 34, S.W. gr. N.W. 1/4.
Owl's Head Mountain capped by Oneota Limestone (a hill of circumdenudation over 300 feet high), Iowa, late 1900s or early 1900s
Located in Twp. 99, R.V. Section I, N.W. gr.
Oneota River near Bluffton, Iowa, late 1890s or early 1900s.
Quarry of Saint Croix overlain by Oneota limestone, Harpers Ferry, Iowa, late 1890s or early 1900s
Quarry is about 100 feet above base of bluff in Oneota.
Gorge in Trenton Limestone at Pinney's Spring, Iowa, late 1890s or early 1900s
Located in Twp. 95, R.V. Section 34, S.W. gr., N.W. 1/4.
Bluff above a stream near Rawson's Mill. The thick ledge at the summit is Niagara limestone. Iowa, late 1890s or early 1900s
The height from the level of the stream to the line of contact is 94 feet.
Limestone cliff, Durango, Iowa, late 1890s or 1900s
Oneota valley from the south and peneplain, Iowa, late 1890s or early 1900s
Located in Twp. 99, R. VI, Section 36, N.W. gr., S.E. 1/4 in northeast Iowa.
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