«

Chert deposits at Nigu bluff, Nigu river, National Petroleum Reserve, Alaska.

Chert rock, Nigu bluff, NPR-A

Chert deposits at Nigu bluff, Nigu river, National Petroleum Reserve, Alaska.

Photo ID#: 21028134.jpg
Photographer: Patrick J Endres
Model Release: No
Restrictions:
None
twitterlinkedinfacebook