Lake Elwell, Montana
14,842 acres
Surface Area
About 150 ft
Max Depth (Approximate)
2,997.92 ft
Surface Elevation
Where It Sits, and How Deep It Goes
Locator - Montana
48.34 degrees N, 111.26 degrees W - Liberty County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Montana Fish, Wildlife & Parks coordinates, not by eye. Schematic - not a survey map.
Depth Profile - Lake Elwell
Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map. Max depth is approximate, from state bathymetry.
How Lake Elwell Stacks Up
- Ranks #6 for surface area among the Montana lakes counted so far - 14,842 acres.
- The largest lake in Liberty County among those counted.
- About 58 miles from Great Falls, as the crow flies.
- 23 fish species on the FWP list for this lake.
Fish Species
Black CrappieBrook SticklebackBurbotChannel CatfishCiscoCommon CarpEmerald ShinerFathead MinnowFlathead ChubLake ChubLake TroutLongnose DaceLongnose SuckerMottled SculpinMountain WhitefishNorthern PikeRainbow TroutShorthead RedhorseShovelnose SturgeonSpottail ShinerWalleyeWhite SuckerYellow Perch
Species recorded for this lake. Presence only - no abundance ratings.
Facts and Figures
Waterbody ID144846718
CountyLiberty
Coordinates48.3386, -111.2613
Largest Lakes in Montana
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Fort Peck Lake | Valley | 233,053 acres | - |
| 2 | Flathead Lake | Lake | 122,132 acres | About 380 ft |
| 3 | Canyon Ferry Lake | Broadwater | 32,773 acres | About 170 ft |
| 4 | Lake Koocanusa | Lincoln | 28,723 acres | - |
| 5 | Hungry Horse Reservoir | Flathead | 23,577 acres | - |
Sources: Montana Fish, Wildlife & Parks lake data (ID 144846718); Washington Dept. of Ecology bathymetry (approximate max depth). Verified October 30, 2026.