Stratigraphy of the Cedar Breaks National Monument

Click on any stratigraphic name for more information.
Stratigraphy of Cedar Breaks National Monument
Zion National Park

Click here to see a geologic image tour of Cedar Breaks National Monument. Website images consist of both standard photograph and 3D views (as anaglyphs - requiring red-and-cyan 3D viewing glasses).

This view is looking west up the valley of the Virgin River toward the high cliffs of Navajo Sandstone and other rock units that form the canyon walls in Cedar Breaks National Monument.

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To learn more about Cedar Breaks National Monument check out the National Park Service website at:

Generalized geology after: Hatfield, S.C.and others, 2003, Geology of Cedar Breaks National Monument: 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. 107-138.

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. 139-154.

Note: The stratigraphic section above does not show the Paleocene boundary within the lower Claron Formation after Hatfield and others 2003, listed above). The interval that includes the Eocene/Paleocene boundary section is not exposed in the park. The geologic literature of the region includes descriptions of other named units for the Paleocene interval, including the North Horn Formation, but they are not discussed here.

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: 4/21/2010
Volcanic rocks Markagunt Leach Canyon Isom Brian Head Claron Straight Cliffs Grand Castle