County: Logan

Date: March 2006

Photographer: Barbara A. Shelton/Keystone Gallery

Place Name:

Short description: Aerial view of Niobrara Chalk formations (from the west over Castle City) in Logan County. The Cretaceous-age Niobrara Chalk in western Kansas was deposited in a massive inland sea that ran north to south across west-central North America about 80 million years ago.

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