Stratigraphy of Arches National Park

Click on any stratigraphic name for more information.
Canyonlands National Park stratigraphy
Delicate Arch

Click here to see a geologic image tour of Arches National Park. Website images include both standard photograph and 3D views (as anaglyphs - requiring red-and-cyan 3D viewing glasses). This image shows Delicate Arch in the Entrada Sandstone. Morrison Formation crops out in the Salt Valley Wash in the distance. To learn more about Arches National Park check out the National Park Service website at:

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Generalized stratigraphy after Doelling, Helmut H., 2000, Geology of Arches National Park, Grand County, Utah: 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. 11-36.

See also:

Hintze, L. F., 1988, Geologic History of Utah; A Field Guide to Utah's Rocks: Brigham Young University Geology Studies Special Publication 7, p. 183 [Chart 84 - Moab-Arches-La Sal area].

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

Information about the Geologic Time Scale is available at:

The URL is:
Last modified: 1/7/2011
Quaternary deposits Blue Gate Ferron Tununk Mancos Dakota Morrison Brushy Basin Salt Wash Tidwell Curtis Entrada Carmel Navajo Kayenta Wingate Chinle Moenkopi Cutler Honaker Trail Paradox