Glen_Canyon_NRA by panniuniu

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									Glen Canyon NRA
Geology of National Parks




                            1
Locality Map




               2
  John Wesley
     Powell
• Woodcut from the
  frontispiece of
  Powell’s book, The
  Canyons of the
  Colorado




                       3
Glen Canyon Dam




                  4
Glen Canyon
   NRA




         5
Colorado River and Tributaries




                                 6
Aerial View of Lake Powell




                             7
 Glen Canyon
Before the Dam




            8
    Morrison
    Formation
• Book Cliffs region,
  Utah




                        9
Stratigraphic Units (Jurassic)




                                 10
Cross-bedding in
Navajo Sandstone




                   11
Boats in a Marina




                    12
Fecal Coliform Bacteria Counts




                                 13
Graffiti




           14

								
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