Chart Of "The Grand Staircase." Grand Staircase Escalante National Monument, Utah. Photo Courtesy Of: Wikipedia, the free encyclopedia. |
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Hoodoos In Devils Garden. Straight Cliffs In Background. Grand Staircase Escalante National Monument, Utah. Photo Courtesy Of: Wikipedia, the free encyclopedia. |
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Grand Staircase Escalante National Monument, Utah:
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The Grand Staircase-Escalante National Monument is a U.S. National Monument protecting 1,880,461 acres of land in southern Utah. There are three main regions: the Grand Staircase, the Kaiparowits Plateau, and the Canyons of the Escalante. The Grand Staircase-Escalante encompasses the largest land area of all U.S. National Monuments. Note: When looking at the chart above of the Grand Staircase, you can see that it covers a very large land mass in southern Utah, and the Grand Canyon area of northern Arizona. It also refers to the immense sequence of sedimentary rock layers that stretch south from Bryce Canyon National Park through Zion National Park and into the Grand Canyon. This sequence was first conceptualized by geologist Clarence Dutton, in the 1870's, as a geologic region forming a huge stairway ascending out of the bottom of the Grand Canyon northward with the cliff edge of each layer forming giant steps. Dutton divided this layer cake of Earth history into five steps from the youngest (uppermost) rocks. Thus, the idea of a staircase. Since then, modern geologists have further divided Dutton's 5 steps into 24 individual rock formations. The major sedimentary rock units exposed in the Grand Canyon range in age from 2000 million to 600 million years and were deposited in warm shallow seas and near-shore environments. The nearly 40 identified rock layers of Grand Canyon form one of the most studied geologic columns in the world. The oldest exposed formation in Zion National Park is the youngest exposed formation in the Grand Canyon � the 240 million year old Kaibab Limestone. The Bryce Canyon area to the northeast continues where the Zion area leaves off by presenting Cenozoic-aged rocks that are 100 million years younger. In fact the youngest formation seen in the Zion area is the oldest exposed formation in Bryce Canyon, the Dakota Sandstone. There are, however, shared rock units between all three, creating a super sequence of formations that geologists call the Grand Staircase. Bryce Canyon's formations are the youngest known units in the Grand Staircase. Younger rock units, if they ever existed, have been removed by erosion. These layers have undergone 5,000 to 10,000 feet (1,500 to 3,000 m) of uplift starting about 66 million years ago with the Laramide orogeny which has increased the ability of the Colorado River to cut its channel to make individual plateaus out of the Colorado Plateaus region. The major canyons of the region did not start to form until about five to six million years ago when the Gulf of California opened up and thus lowered the river's base level (its lowest point). The Grand Staircase-Escalante National Monument stretches from the towns of Big Water, Glendale and Kanab, Utah on the southwest, to the towns of Escalante and Boulder on the northeast. Encompassing 1.9 million acres, the monument is slightly larger in area than the state of Delaware. The western part of the Monument is dominated by the Paunsaugunt Plateau and the Paria River, and is adjacent to Bryce Canyon National Park.
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We recommend visiting Grand Staircase Escalante National Monument, Utah. when also traveling by car to a major city in the Southern Utah Area.
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Brown Hoodoos. Paria Rimrocks Toadstool Trail. Grand Staircase Escalante National Monument, Utah. Photo Courtesy: Wikipedia. | Devils Garden and Straight Cliffs. Grand Staircase Escalante National Monument, Utah. Photo Courtesy: Wikipedia. |
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Escalante Hundred Handprints. Grand Staircase Escalante National Monument, Utah. Photo Courtesy: Wikipedia. | Metate Arch. Grand Staircase Escalante National Monument, Utah. Photo Courtesy: Wikipedia. |
Willis Creek. Grand Staircase Escalante National Monument, Utah. Photo Courtesy: Wikipedia. | Neon Canyon. Grand Staircase Escalante National Monument, Utah. Photo Courtesy: Wikipedia. |
Peek a Boo Gulch. Grand Staircase Escalante National Monument, Utah. Photo Courtesy: Wikipedia. | Peek a Boo Gulch. Grand Staircase Escalante National Monument, Utah. Photo Courtesy: Wikipedia. |
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