Glen Canyon NRA

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Glen Canyon NRA

• Geology of National Parks

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Locality Map
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John Wesley Powell

• Woodcut from the frontispiece of Powells book,
  The Canyons of the Colorado

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Glen Canyon Dam
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Glen Canyon NRA
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Colorado River and Tributaries
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Aerial View of Lake Powell
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Glen Canyon Before the Dam
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Morrison Formation

• Book Cliffs region, Utah

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Stratigraphic Units (Jurassic)
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Cross-bedding in Navajo Sandstone
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Boats in a Marina
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Fecal Coliform Bacteria Counts
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Graffiti