Chalk Bluffs
County: Gove
Date: November 1970
Photographer: Grace Muilenburg/KGS
Place Name: Castle Rock
Short description: Chalk bluffs south of Castle Rock in Gove County. Chalk formations in Gove County are part of the Smoky Hill Chalk Member of the Niobrara Chalk. The massive layers of chalk formed from sediments deposited on the bottom of a great inland sea that covered much of western North America during the later part of the Cretaceous Period, about 80 million years ago.
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