

Photo ID#: 21028705
Chert rocks from Nigu river, NPR-A
Multi colored pieces of chert gathered along the Nigu river, which in eskimo means rainbow. National Petroleum Reserve, Alaska.
Model Release: No
© Patrick J Endres / www.AlaskaPhotoGraphics.com
Restrictions: None
© Patrick J Endres / www.AlaskaPhotoGraphics.com