| Jackson Lake | |
|---|---|
Jackson Lake from Colter Bay | |
| Location | Grand Teton National Park,Teton County,Wyoming, US |
| Coordinates | 43°54′02″N110°40′26″W / 43.90056°N 110.67389°W /43.90056; -110.67389[1] |
| Type | Moraine-dammed lake anddam |
| Primary inflows | Snake River |
| Primary outflows | Snake River |
| Basin countries | United States |
| Max. length | 15 mi (24 km) |
| Max. width | 7 mi (11 km) |
| Surface area | 25,540 acres (10,340 ha)[2] |
| Max. depth | 438 ft (134 m) |
| Surface elevation | 6,772 ft (2,064 m) |
| Islands | Over 15 including Elk Island, Donoho Point |
Jackson Lake is inGrand Teton National Park in northwesternWyoming.[3] This natural lake was enlarged by the construction of theJackson Lake Dam originally built in 1911, enlarged in 1916 and rebuilt by 1989.[4] As part of theMinidoka Project the top 33 ft (10 m) of the lake is used by farmers inIdaho for irrigation purposes underwater rights legislation enacted prior to the establishment of Grand Teton National Park. The lake is the remnant of largeglacial gouging from the neighboringTeton Range to the west and theYellowstone Plateau to the north.[5] The lake is primarily fed by theSnake River, which flows in from the north, and empties at Jackson Lake Dam. Jackson Lake is one of the largest high-altitude lakes in the United States, at an elevation of 6,772 ft (2,064 m) above sea level. The lake is up to 15 mi (24 km) long, 7 mi (11 km) wide and 438 ft (134 m) deep. The water of the lake averages below 60 °F (16 °C), even during the summer.[6]
Numerous species of fish inhabit the lake including nonnativebrown andlake trout and the nativeSnake River fine-spotted cutthroat trout andmountain whitefish.[7]
There are over 15 islands in the lake, including the largest, Elk Island, and Donoho Point.
John D. Rockefeller, Jr. Memorial Parkway is located near the northern end of Jackson Lake and extends to the south entrance ofYellowstone National Park. This roadway combines with the roads in Grand Teton National Park that follow the eastern side of the lake, and provides access for boating and fishing. There are several marinas and lodges along the eastern shore such as Leeks marina, Colter Bay Village,Jackson Lake Lodge andSignal Mountain Lodge. All of these except Jackson Lake Lodge have boat access points and ramps. The western shore of Jackson Lake is primitive, with only hiking trails and a handful of primitive campground spots.