Stocking Report
Walleye stocking in Montana
1,700 recorded stockings, 36 waters, averaging 1.53" at release, from Montana Fish, Wildlife & Parks records. Every water links to its own page.
Latest recorded stocking: Aug 4, 2026
When walleye goes in
60% of recorded stockings happen in June.
- Jan
- Feb
- Mar
- 2%Apr
- 14%May
- 60%Jun
- 20%Jul
- 2%Aug
- 1%Sep
- 0%Oct
- Nov
- Dec
Share of all recorded walleye stockings in Montana, by calendar month. Stocking does not guarantee fish are present. Check current regulations and access before you go.
States run two very different stocking calendars. We looked at all 114,145 records to work out why.
Where walleye gets stocked in Montana
| Water | County | Stockings | Fish | Last recorded |
|---|---|---|---|---|
| Fort Peck Lake | Valley | 1,103 | 655,700,586 | Aug 4, 2026 |
| Tongue River Reservoir | Big Horn | 59 | 24,499,518 | May 14, 2026 |
| Bighorn Lake | Not reported | 56 | 36,014,229 | Jul 7, 2026 |
| Nelson Reservoir | Not reported | 56 | 2,242,321 | Jun 29, 2026 |
| Beaver Creek Reservoir | Not reported | 52 | 688,118 | Aug 4, 2026 |
| South Sandstone Reservoir | Fallon | 40 | 2,619,254 | Jun 15, 2026 |
| Dailey Lake | Park | 33 | 153,712 | Aug 21, 2025 |
| Boxelder Lake | Sheridan | 30 | 1,608,325 | Jun 30, 2026 |
| Fresno Reservoir | Hill | 27 | 1,156,109 | Jun 30, 2026 |
| Castle Rock Reservoir | Not reported | 27 | 28,149 | Jun 16, 2026 |
| Petrolia Reservoir | Not reported | 26 | 738,699 | Jul 6, 2026 |
| Lake Frances | Not reported | 25 | 1,097,513 | Aug 4, 2026 |
| Ester Lake | Phillips | 21 | 476,835 | Jul 13, 2023 |
| Cow Creek Reservoir | Powder River | 17 | 269,180 | Jun 30, 2026 |
| Wadsworth Lake | Not reported | 17 | 82,311 | Jun 17, 2025 |
| Dry Fork Reservoir | Not reported | 13 | 121,175 | Jun 25, 2025 |
| Beaver Creek | Not reported | 13 | 26,000 | Jun 24, 2013 |
| Gartside Reservoir | Richland | 10 | 324,000 | May 14, 2008 |
| Little Warm Reservoir | Phillips | 9 | 87,885 | Jun 23, 2016 |
| Anita Reservoir | Yellowstone | 8 | 45,972 | Aug 4, 2026 |
| Lake Baker | Not reported | 8 | 55,000 | Jun 15, 2026 |
| Bailey Reservoir | Not reported | 7 | 80,122 | Jun 26, 2019 |
| Trumbo Pond | Not reported | 6 | 6,000 | Jul 1, 2009 |
| Missouri River | St. Charles | 6 | 293,858 | Sep 6, 2006 |
See everything Montana stocks in the full Montana stocking report, or browse every mapped water in the Montana fishing spot finder.
Source: Montana Fish, Wildlife & Parks, from its fish stocking locations dataset.
