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Browse Items (71585 total)

Lime quarry, Cedar Valley, Iowa, late 1890s or early 1900s

Lime quarry, Cedar Valley, Iowa, late 1890s or early 1900s

Lime quarry, Cedar Valley, Iowa, late 1890s or early 1900s

Lime quarry, Cedar Valley, Iowa, late 1890s or early 1900s

Anamosa Stage, Cedar Bluff, Iowa, late 1890s or early 1900s

Anamosa Stage, Cedar Bluff, Iowa, late 1890s or early 1900s

Blocks from basal ledges, creeping down slopes of Maquoketa Shales, Epworth, Iowa, late 1890s or early 1900s

Blocks from basal ledges, creeping down slopes of Maquoketa Shales, Epworth, Iowa, late 1890s or early 1900s

Located north of Epworth.
Monadnock east of Almoral, Iowa, late 1890s or early 1900s

Monadnock east of Almoral, Iowa, late 1890s or early 1900s

Fallen masses of limestone, just above the base of Niagaran, Elk Creek, Iowa, late 1890s or early 1900s

Fallen masses of limestone, just above the base of Niagaran, Elk Creek, Iowa, late 1890s or early 1900s

Devil's Backbone in a small driftless area, Dundee, Iowa, late 1890s or early 1900s

Devil's Backbone in a small driftless area, Dundee, Iowa, late 1890s or early 1900s

Located northwestern part of Delaware County, Iowa.
Sontty Hills, Delhi Township, south of Earlville, Iowa, late 1890s or early 1900s

Sontty Hills, Delhi Township, south of Earlville, Iowa, late 1890s or early 1900s

Bluff next to the Maquoketa River on the eastern side of "Devil's Backbone", Dundee, Iowa, late 1890s or early 1900s

Bluff next to the Maquoketa River on the eastern side of "Devil's Backbone", Dundee, Iowa, late 1890s or early 1900s

Core of till, mantled with loess, looking south across Anamosa, Wyoming Road, Anamosa, Iowa, July 8, 1924

Core of till, mantled with loess, looking south across Anamosa, Wyoming Road, Anamosa, Iowa, July 8, 1924

Located just South of Jackson Twp., Section 24 (Primary 6).