Lake Powell
| Lake Powell | |
|---|---|
.jpg) |
|
| Location | Utah, Arizona |
| Coordinates | 36°56′10″N 111°29′03″W / 36.93611°N 111.48417°WCoordinates: 36°56′10″N 111°29′03″W / 36.93611°N 111.48417°W (Glen Canyon Dam) |
| Type | Reservoir |
| Primary inflows | |
| Primary outflows | Colorado River |
| Catchment area | 280,586 km2 (108,335 sq mi) |
| Basin countries | United States |
| Managing agency | National Park Service |
| Built | September 13, 1963 |
| Max. length | 186 mi (299 km) |
| Max. width | 25 mi (40 km) (maximum) |
| Surface area | 161,390 acres (65,310 ha) |
| Average depth | 132 ft (40 m) |
| Max. depth | 583 ft (178 m) |
| Water volume |
|
| Residence time | 7.2 years |
| Shore length1 | 3,057 km (1,900 mi) |
| Surface elevation |
|
| Website | www |
| 1 Shore length is not a well-defined measure. | |
Lake Powell is a reservoir on the Colorado River, straddling the border between Utah and Arizona (most of it, along with Rainbow Bridge, is in Utah). It is a major vacation spot that around 2 million people visit every year. It is the second largest man-made reservoir by maximum water capacity in the United States behind Lake Mead, storing 24,322,000 acre feet (3.0001×1010 m3) of water when full. However, due to high water withdrawals for human and agricultural consumption, and because of subsequent droughts in the area, Lake Powell is currently larger than Mead in terms of volume of water currently held, depth and surface area. Lake Powell was created by the flooding of Glen Canyon by the Glen Canyon Dam, which also led to the creation of Glen Canyon National Recreation Area, a popular summer destination. The reservoir is named for explorer John Wesley Powell, a one-armed American Civil War veteran who explored the river via three wooden boats in 1869.
In 1972, Glen Canyon National Recreation Area was established. It is public land managed by the National Park Service, and available to the public for recreational purposes. It lies in parts of Garfield, Kane, and San Juan counties in southern Utah, and Coconino County in northern Arizona. The northern limits of the lake extend at least as far as the Hite Crossing Bridge. A map centered at the confluence of the Escalante River 37°17′22″N 110°52′20″W / 37.28944°N 110.87222°W with the Colorado River gives a good view of the extent of the lake.
...
Wikipedia