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科罗拉多大峡谷(Grand Canyon)位于美国亚利桑那州西北部,是科罗拉多河经过数百万年以上的冲蚀而形成,色彩斑斓,峭壁险峻。大峡谷总长446公里,平均深度有1200米,宽度从0.5公里至29公里不等。科罗拉多高原抬升时,科罗拉多河及其支流切割层层沉积岩,由此形成了大峡谷,使得将近20亿年来的地质变迁史一览无余。大峡谷的边缘是一片森林,越往峡谷中走温度就越高,到
Located in the northwestern part of Arizona, USA, the Grand Canyon is a colorful, cliff-steep cliff where the Colorado River has been eroded for millions of years. The Grand Canyon has a total length of 446 kilometers, with an average depth of 1,200 meters and a width of from 0.5 kilometers to 29 kilometers. During the uplift of the Colorado Plateau, the Colorado River and its tributaries cut layers of sedimentary rocks, forming the Grand Canyon, giving a glance at the nearly two-million-year history of geological changes. The edge of the Grand Canyon is a forest, the higher the temperature goes to the canyon, to