Lakes / Montana / Blaine County
Lakes in Blaine County, Montana
24 lakes counted in Blaine County - the largest is North Chinook Reservoir at 523.1 acres.
24
Lakes Counted
523.1 acres
Largest - North Chinook Reservoir
Blaine County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | North Chinook Reservoir | Blaine | 523.1 acres | - |
| 2 | Lake Seventeen | Blaine | 518.1 acres | - |
| 3 | Putnam Lake | Blaine | 416.1 acres | - |
| 4 | Alkali Lake | Blaine | 283.9 acres | - |
| 5 | McLaren Reservoir | Blaine | 192 acres | - |
| 6 | Black Coulee | Blaine | 163.6 acres | - |
| 7 | Bigby Lake | Blaine | 143.8 acres | - |
| 8 | Threemile Reservoir | Blaine | 128.2 acres | - |
| 9 | Tule Lake | Blaine | 121.6 acres | - |
| 10 | J Lake | Blaine | 93.2 acres | - |
| 11 | Skinners Lake | Blaine | 70.7 acres | - |
| 12 | Silver Bow Lake | Blaine | 58.8 acres | - |
| 13 | Staff Reservoir | Blaine | 45.2 acres | - |
| 14 | Newhouse Reservoir | Blaine | 41 acres | - |
| 15 | T U Reservoir | Blaine | 38.1 acres | - |
| 16 | Harbolt Reservoir | Blaine | 35.3 acres | - |
| 17 | Twin Reservoir | Blaine | 31 acres | - |
| 18 | Holm Reservoir | Blaine | 25.9 acres | - |
| 19 | Grasshopper Reservoir | Blaine | 23 acres | - |
| 20 | Ross Lake | Blaine | 20 acres | - |
| 21 | Anderson Reservoir | Blaine | 18 acres | - |
| 22 | Faber Reservoir | Blaine | 17 acres | - |
| 23 | Butch Reservoir | Blaine | 7 acres | - |
| 24 | Als Coulee Reservoir | Blaine | 5 acres | - |
Sources: Montana Fish, Wildlife & Parks lake data; USGS. Verified October 30, 2026.