Lakes / Montana / Liberty County
Lakes in Liberty County, Montana
6 lakes counted in Liberty County - the largest is Lake Elwell at 14,842 acres.
6
Lakes Counted
14,842 acres
Largest - Lake Elwell
Liberty County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Elwell | Liberty | 14,842 acres | About 150 ft |
| 2 | Rehal Flat | Liberty | 244 acres | - |
| 3 | Bingham Lake | Liberty | 54.9 acres | - |
| 4 | Romain Reservoir | Liberty | 48.7 acres | - |
| 5 | Bourpe and Hamilton Reservoir | Liberty | 46.5 acres | - |
| 6 | Walden Reservoir | Liberty | 25.9 acres | - |
Sources: Montana Fish, Wildlife & Parks lake data; USGS. Verified October 30, 2026.