| Hebgen Lake | |
|---|---|
 Hebgen Lake | |
  Hebgen Lake Location in Montana | |
| Location | Gallatin County, Montana, United States |
| Coordinates | 44°46′56″N 111°14′01″W / 44.78222°N 111.23361°W[1] |
| Type | Reservoir |
| Primary inflows | Madison River |
| Primary outflows | Madison River |
| Catchment area | 905 square miles (2,340 km2) |
| Basin countries | United States |
| Max. length | 15 miles (24 km) |
| Max. width | 4 miles (6.4 km) |
| Surface area | 12,563 acres (5,084 ha)[2] |
| Max. depth | 70 feet (21 m)[2] |
| Water volume | 386,200 acre⋅ft (476,400,000 m3)[2] |
| Shore length1 | 65 miles (105 km)[3] |
| Surface elevation | 6,539 ft (1,993 m)[1] |
| 1 Shore length is not a well-defined measure. | |
Hebgen Lake is a reservoir created by the Hebgen Dam, located in Gallatin County in southwest Montana. It is well known for the 1959 Hebgen Lake earthquake (magnitude 7.1 to 7.5) which occurred nearby on August 17, 1959, forming Quake Lake, which is located immediately downstream.[4]
In addition to the Madison River, which flows through the reservoir, the tributaries include the South Fork Madison River, which feeds the southeastern Madison Arm, as well as Duck Creek, Grayling Creek and Red Canyon Creek, which flow into the eastern Grayling Arm. To the west, opposite the Grayling Arm, Watkins Creek flows into the main part of the reservoir.
- ^ a b "Hebgen Lake". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.
- ^ a b c Cite error: The named reference
mfwpwas invoked but never defined (see the help page). - ^ "Hebgen Lake Is 65 Miles Around". Montana Standard. August 19, 1959. Archived from the original on March 8, 2012. Retrieved July 11, 2010.
- ^ Cite error: The named reference
geosurveywas invoked but never defined (see the help page).