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Man standing in cut for the foundation of women's gymnasium shows Loess overlying Buchanan Gravels, The University of Iowa, late 1890s or early 1900s
Buchanan gravels, Winthrop, Iowa, late 1890s or early 1900s
Topographic setting of the first Interurban cut (north of the Upper Interurban bridge) with folded and contorted Buchanan Gravels, Iowa City, Iowa, late 1890s or early 1900s
Iowa City
Section (1) of Buchanan Gravels, folded and contorted by the Iowan Ice Sheet in first Interurban cut
Iowa City, north of the Upper Interurban Bridge
Section (3) of Buchanan gravels folded and contorted by the Iowan Ice Sheet in the first Interurban cut, Iowa, late 1890s or early 1900s
Located north of the upper Interurban bridge.
Close view of materials in north face of gully exposure, showing Buchanan gravels at bottom, yellow Loess at top, silt and residual material intervening, Iowa, late 1890s or early 1900s.
Located 1/4 mile south of Black Springs.
Section (2) of Buchanan Gravels folded and contorted by the Iowan Ice Sheet in the first Interurban cut, Iowa, late 1890s or early 1900s
Located north of the upper Interurban bridge.
North face of Interurban cut showing Kansan Drift at bottom, yellow loess at top, and Buchanan Gravels intervening, Iowa City, Iowa, late 1890s or early 1900s
Railroad flat cars in J. C. Gravel Pit, Independence, Iowa, late 1890s or early 1900s
Aftonian, Kansan Drift, Buchanan gravels, Illinoian Drift, Sangamon sands, and Loess, Muscatine, Iowa, late 1890s or early 1900s
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