September 20, 2012
Palaeozoic section, Alaska

http://msugeology.tumblr.com/post/31880419630/finally-some-paleozoic-sedimentary-rocks-in

September 26, 2011

(Source: ephbombzee)

12:43am  |   URL: http://tmblr.co/ZbRPqx9xi87A
  
Filed under: Alaska geology UAF