Precambrian provinces. Modifi ed and compiled from Lisenbee and DeWitt (1993), Nelson (1993), Sears (2006), and Sims and others (2004).
Originally uploaded in Integrating Research and Education:Montana Geoheritage Project:Montana-Yellowstone Geologic Field Guide Database.
Image 181221 is a 446 by 750 pixel WebP
Uploaded:
Mar27 18