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Stratigraphy of Glen Canyon National Recreation Area

Click on any stratigraphic name for more information.
Glen Canyon stratigraphy
Generalized stratigraphy after: Anderson, P. P., Chidsey, T. C., Sprinkel, D. A., and Willis, G. C., 2000, Geology of Glen Canyon Nation Recreation Area: In Geology of Utah's Parks and Monuments, Sprinkel, D. A., Chidsey, T. C., and Anderson, P. B., editors, Utah Geological Association Publication 28., p. 301-335.

Please note: The thick nesses of stratigraphic units are highly variable across the large region encompassed by Glen Canyon National Recreation Area. The scale above on this composite section does not reflect this variability. For more detailed thickness of unit descriptions, see Anderson and others (2000), p. 312-313.
Glen Canyon National Recreation Area

Click here to see a collection of historic images of Glen Canyon taken by the Powell Expedition of 1872. Website images include both standard photograph and 3D views (as anaglyphs - requiring red-and-cyan 3D viewing glasses).

Click here to take a tour of Glen Canyon National Recreation Area and Rainbow Bridge National Monument (in 3D or standard photography)

This view shows cliffs of Navajo Sandstone along the Colorado about midway through Glen Canyon (before the valley was flooded by Lake Powell).

To learn more about Glen Canyon National Recreation Area check out the National Park Service Website at:

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Stratigraphic unit information is modified from the USGS GeoLex (Lexicon of Geology):

Information about the Geologic Time Scale is available at:

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Last modified: 1/7/2011
Quaternary deposits Straight Cliffs Tropic Dakota Morrison Romana Summerville Entrada Carmel Page San Rafael Navajo Kayenta Wingate Glen Canyon Chinle Moenkopi White Rim Organ Rock Cedar Mesa Cutler Elephant Canyon Honaker Trail Paradox Pinkerton Trail Hermosa