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Cannonball concretion, Theodore Roosevelt National Park, North Dakota. Photo by K. Layou
Originally uploaded in NAGT:About NAGT:Divisions:Geo2YC Division:Geo2YC Newsletters.

Image 271436 is a 3024 by 4032 pixel WebP
Uploaded: Aug30 23

Last Modified: 2023-08-31 13:54:25
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Karen Layou, J Sargeant Reynolds Community College
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