How deep is the Grand Canyon in America?

The Grand Canyon in northwestern Arizona, USA. It is deeply formed by the Colorado River. It is about 350 kilometers long and 1 1,800 meters deep from Mabel Canyon on the northern state border to Grandvash Cliff near the Nevada border. The width of the valley top is 8-25km, and the width of the valley bottom waterline is less than 1 km, and in some places it is only120m. The valley walls on both sides are stepped. The climate is dry and plants are scarce. Strata from Paleoproterozoic to Cenozoic can be observed on the valley wall, showing various colors in the sun. The deepest canyon (about 170 km long) is designated as a national park. Located in the middle reaches of Colorado River in northwest Arizona and southwest of Colorado Plateau, it is one of the most magnificent scenery on earth. Some people say that the only natural landscape in space that can be seen with the naked eye is the Colorado Grand Canyon. The Colorado River is the main river in North America. It flows from the Rocky Mountains to the southwest and into the northwest of Mexico. The total length is 2330 kilometers. It flows through Wyoming, Colorado, Utah, New Mexico, Nevada, Arizona and California, and cuts 19 major canyons on the Colorado Plateau, of which the deepest, widest and longest is the Colorado Grand Canyon. It starts from Mabel Canyon and ends at the Grand Vash Cliff, with a total length of 446 kilometers, making it one of the longest canyons in the world. The top of the canyon is 6-28km wide and the deepest part is1800m. It takes three to four hours from the top of the valley to the bottom. The width of both sides of the valley bottom is less than 1km, and the narrow part is only 120m. The valley walls on both sides are stepped. The water level at the bottom of the valley is less than 1000 m wide, and the water depth increases to 18 m in summer. Most of the rocks are red. From the bottom of the valley to the top of the mountain, a series of rock series from Precambrian to Cenozoic are exposed along the wall, with clear horizontal levels and different rock tones, and representative biological fossils in various geological periods are called "living geological history textbooks". 19 19, the US Congress passed a bill to turn the deepest canyon with a length of about 170 km and an area of 2,728 square kilometers into a national park. Now, many domestic and foreign tourists come here every year to enjoy the wonders of nature and understand the magical changes of the earth for hundreds of millions of years. It is also a good place to shoot American westerns. I believe you are already familiar with this wild and mysterious scenery. Next, we will introduce you to the origin of the Grand Canyon and its fascinating scenery close-ups. Those beautiful pictures will definitely make you look forward to the Grand Canyon more. Colorado Plateau is a typical "Table Mountain", also known as "Table Mountain", that is, a mountain with a flat top and steep sides. This terrain is formed by erosion (undercut and spalling). During the period of erosion, the hard rock strata on the plateau constitute the protective cap of the inter-valley area, and the erosion in the valley is active. The result is a platform mountain or fortress mountain. The Colorado Plateau is a stable block extending from the North American paleoplatform to the Cordillera region. Because of its relative stability, the surface fluctuation changes little, and the Precambrian crystalline rock basement is covered with thick sediments of various geological periods, with clear horizontal layers and different rock tones, and the biological fossils of various geological periods are representative. Rock formations with different lithology and colors are carved into various peaks, rocks and cliff pillars by external forces. With the change of weather, water, light and mountains are varied, and the natural wonders are spectacular. The climate and landscape of the two walls and the bottom of the canyon are very different. The south wall is dry and warm, with few plants. The north wall is higher than the south wall, the climate is cold and humid, and the trees are green; The bottom of the valley is dry and hot, showing a desert landscape. The Colorado River winding at the bottom is deep and curved, and the riverbed gradient of the whole Grand Canyon area is per kilometer 150 cm, which is 25 times that of the Mississippi River. Among them, 50% of the slope is still very concentrated, creating a fast-flowing landscape of local rivers in the canyon. Because of this, sailing and drifting along the canyon has become a fascinating adventure. References:

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