Stratigraphy, Sedimentology, Geologic History of Colorado Plateau

Please Note

As of February 2011, the Colorado Plateau paleogeographic maps on this page will no longer be updated; please visit

  • Colorado Plateau Geosystems Website

    to access all of the maps in this series as well as new and revised maps.


    The Colorado Plateau encompasses some of the most scenic regions on Earth. This scenery exposes magnificent outcrops of sedimentary, igneous, and metamorphic rock across the states of Arizona, Colorado, New Mexico, and Utah. Perhaps most spectacular are outcrops of colorful, flat-lying sedimentary rock, especially Permian, Triassic, and Jurassic redbed and eolian deposits that form the centerpieces of the greatest concentration of Parklands in the World. Explore the various topics below:

    The Grand Staircase: a Geologic Guide to one of Earth's Showpieces ...features panels showing geologic evolution of Grand Canyon Region.

    Sedona-Verde Valley Region: a Geologic Guide to the geology of Central Arizona ...features a stratigraphic section, geologic map, and lots of photos.

    Stratigraphic columns of the Southern Western Interior ...columnar sections showing stratigraphy of the southwest.

    Paleogeography of Colorado Plateau Region

    Detailed paleogeography of Colorado Plateau, Southern Rocky Mountains, and portions of Basin and Range.

    Tertiary Paleogeography, Central Arizona Tectonism, volcanism, sedimentation, and paleogeography of the Mogollon Rim and adjacent central Arizona.