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  2. Geology of Arizona - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Arizona

    The Mesoproterozoic formations in the Grand Canyon are overlain by the 850 million year old, Neoproterozoic Chuar Group and Sixtymile Formation sedimentary rocks. The Great Unconformity is a famous gap in the stratigraphic record of the Grand Canyon of 900 million years between Proterozoic granitic rocks and Cambrian marine sediments. For the ...

  3. Geology of the Grand Canyon area - Wikipedia

    en.wikipedia.org/wiki/Geology_of_the_Grand...

    The resulting Grand Canyon Supergroup of sedimentary units is composed of nine varied geologic formations that were laid down from 1.2 billion and 740 million years ago in this sea. [11] Good exposures of the supergroup can be seen in eastern Grand Canyon in the Inner Gorge and from Desert View, Lipan Point and Moran point. [12] [note 1]

  4. Geology of the Canyonlands area - Wikipedia

    en.wikipedia.org/wiki/Geology_of_the_Canyonlands...

    Shafer Canyon Overlook, Canyonlands. The geology of the park is the consequence of deposition, uplift and erosion. Island in the Sky is a mesa overlooking the Green River (Colorado River tributary) to the west and the Colorado River to the east, and separated from the Colorado Plateau by "the neck".

  5. Tonto Group - Wikipedia

    en.wikipedia.org/wiki/Tonto_Group

    Figure 1. A geologic cross section of the Grand Canyon. [5]The Tonto Group is a name for an assemblage of related sedimentary strata, collectively known by geologists as a Group, that comprises the basal sequence Paleozoic strata exposed in the sides of the Grand Canyon.

  6. Geology of the Bryce Canyon area - Wikipedia

    en.wikipedia.org/wiki/Geology_of_the_Bryce...

    However, the same processes that create hoodoos will also eventually destroy them. In the case of Bryce Canyon, the hoodoos' rate of erosion is 2–4 feet (0.6–1.3 m) every 100 years. [19] As the canyon continues to erode to the west it will eventually capture (in perhaps 3 million years) the watershed of the East Fork of the Sevier River ...

  7. Grand Staircase - Wikipedia

    en.wikipedia.org/wiki/Grand_Staircase

    View from Utah Highway 12 of Grand Staircase–Escalante National Monument. The Grand Staircase is an immense sequence of sedimentary rock layers that stretches south from Bryce Canyon National Park and Grand Staircase–Escalante National Monument, through Zion National Park, and into Grand Canyon National Park.

  8. Battle over luxury Verdugo Mountains housing development ...

    www.aol.com/news/battle-over-luxury-verdugo...

    The latest group to protest, No Canyon Hills, formed in spring 2023 as a collection of artists, designers and amateur botanists who say the area's native flora and wildlife are worth protecting.

  9. Canyon Lands - Wikipedia

    en.wikipedia.org/wiki/Canyon_Lands

    At the eastern margin of the Canyon Lands is the Mesa Verde, a huge cuesta that has been deeply dissected by streams. Here in great recesses in the canyon walls are found the ruins of ancient cliff dwellings. East of the Little Colorado River are the brilliantly colored areas known as the Painted Desert. Here the rocks show gorgeous colors in ...