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Browse Items (8 total)

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Cedar Valley Stage limestone with lentincular masses included between the strata, Iowa City, Iowa, late 1890s or early 1900s

Cedar Valley Stage limestone with lentincular masses included between the strata, Iowa City, Iowa, late 1890s or early 1900s

Quarry in Devonian Limestone, near Iron Bridge, northwest of North Liberty, Iowa, late 1890s or early 1900s

Quarry in Devonian Limestone, near Iron Bridge, northwest of North Liberty, Iowa, late 1890s or early 1900s

Located in Twp. 81, R. VII, Section 22
Men in quarry in Devonian limestone, Cedar Valley Stage, Iowa City, Iowa, late 1890s or early 1900s

Men in quarry in Devonian limestone, Cedar Valley Stage, Iowa City, Iowa, late 1890s or early 1900s

Quarry in Devonian limestone, Cedar Valley Stage, showing two parallel joints, Iowa City, Iowa, late 1890s or early 1900s

Quarry in Devonian limestone, Cedar Valley Stage, showing two parallel joints, Iowa City, Iowa, late 1890s or early 1900s

Cedar Valley Stage limestone with lentincular masses included between the strata, Iowa City, Iowa, late 1890s or early 1900s

Cedar Valley Stage limestone with lentincular masses included between the strata, Iowa City, Iowa, late 1890s or early 1900s

Quarry in Devonian Limestone, near Iron Bridge, northwest of North Liberty, Iowa, late 1890s or early 1900s

Quarry in Devonian Limestone, near Iron Bridge, northwest of North Liberty, Iowa, late 1890s or early 1900s

Located in Twp. 81, R. VII, Section 22
Men in quarry in Devonian limestone, Cedar Valley Stage, Iowa City, Iowa, late 1890s or early 1900s

Men in quarry in Devonian limestone, Cedar Valley Stage, Iowa City, Iowa, late 1890s or early 1900s

Quarry in Devonian limestone, Cedar Valley Stage, showing two parallel joints, Iowa City, Iowa, late 1890s or early 1900s

Quarry in Devonian limestone, Cedar Valley Stage, showing two parallel joints, Iowa City, Iowa, late 1890s or early 1900s

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