Central Asian Flyway Park, Periyar National Park, Kole Wetland, Neyyar Wildlife Sanctuary and Suchindram Theroor Birds Sanctuary, the southernmost protected area in the continental range of the Central Asian Flyway Pakistan has had very few studies to monitor the migratory bird populations and their use of wetlands. Current flyway management systems rely on information from local hunters, erratic wildlife surveys and raw estimates. Key wetland sites include Mangla Lake, Rawal Lake in Margalla Hills National Park, Zangi Nawar Lake, the high mountain wetlands in northern Pakistan including the Naltar wetland complex and the wetlands of Deosai National Park plains. There have been several
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