description Lake Powell Overview
Lake Powell is a major artificial reservoir on the Colorado River, straddling the border between Utah and Arizona in the United States. It was created by the construction of the Glen Canyon Dam, which was completed in 1963 and became fully operational in 1966, serving as the second-largest reservoir by capacity in the country. The reservoir stores water for the Upper Colorado River Basin and generates hydroelectric power through the dam's power plant. Named after explorer John Wesley Powell, it is situated within a network of deep sandstone canyons.
insights Ranking position
Lake Powell ranks #112 of 214 in the Lake ranking, behind Lake Albert, ahead of Lake Kariba.
help Lake Powell FAQ
How was Lake Powell formed?
Lake Powell is a major artificial reservoir on the Colorado River, created by the construction of the Glen Canyon Dam. The dam was completed in 1963 and became fully operational by 1966.
What states does Lake Powell border?
Lake Powell straddles the border between Utah and Arizona in the United States. It serves as the second-largest reservoir in the country by maximum water capacity.
What is the most famous landmark on Lake Powell?
Rainbow Bridge, one of the world's largest known natural bridges, is located on the shores of Lake Powell. It is considered a sacred site by several Native American tribes in the region and is accessible only by boat or a long hike.
Why has the water level in Lake Powell been dropping?
Prolonged droughts in the American Southwest and overuse of the Colorado River's water have caused significant drops in Lake Powell's water levels. This decline has heavily impacted hydroelectric power generation at the dam and recreational access.
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