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Soldiers' Monument at Fort Wallace Cemetery
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Brick Plant, Kanopolis
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Around Cobra Rock Base
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Chalk Collapse at Monument Rocks
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Monument Rocks
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The Sphinx (1983)
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Cobra Rock (1996)
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Niobrara Chalk Badlands
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Niobrara Chalk Exposures
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Niobrara Chalk Bluffs
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Castle Rock (1965)
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Cobra Rock (1963)
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Monument Rocks
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Wildcat Canyon
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Wildcat Canyon
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Wildcat Canyon Chalk Beds
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Wildcat Canyon
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Chalk Bluffs West of Elkader
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