Three Gorges number of cultural relics, including hanging coffins and stone inscriptions that cannot be protected, were covered by the reservoir. Three Gorges The Three Gorges () are three adjacent gorges along the middle reaches of the Yangtze River, in the hinterland of the People's Republic of China. With a subtropical monsoon climate, they are known for their scenery. The "Three Gorges Scenic Area" is classified as a AAAAA scenic area (the highest level) by the China National Tourism Administration. The Three Gorges—comprising the Qutang, Wu, and Xiling gorges—span 193 miles, beginning at Baidi City of Chongqing Municipality, in the west and
Risks to the Glen Canyon Dam of between 500–700 years. Glen Canyon Dam is a concrete arch dam on the Colorado River in northern Arizona in the United States, just north of Page. The dam was built to provide hydroelectricity and flow regulation from the upper Colorado River Basin to the lower. Its reservoir is called Lake Powell, and is the second largest artificial lake in the country, extending upriver well into Utah. The dam is named for Glen Canyon, a colorful series of gorges, most of which now lies under the reservoir. Construction of Glen Canyon Dam started in 1956 and was not finished until