Supenau Reservoir - stocking report
Supenau Reservoir was last stocked on September 9, 2025: 1,500 Rainbow Trout (8.01 in avg).
Full stocking history
| Date | Species | Fish | Size | Hatchery |
|---|---|---|---|---|
| September 9, 2025 | Rainbow Trout | 1,500 | 8.01 in avg | Giant Springs Trout Hatchery |
| June 4, 2025 | Rainbow Trout | 1,000 | 7.03 in avg | Fort Peck Hatchery |
| June 12, 2024 | Rainbow Trout | 1,000 | 7.25 in avg | Fort Peck Hatchery |
| July 5, 2023 | Rainbow Trout | 1,000 | 6.7 in avg | Fort Peck Hatchery |
| May 26, 2022 | Rainbow Trout | 1,000 | 7.08 in avg | Fort Peck Hatchery |
| June 14, 2021 | Rainbow Trout | 2,500 | 7.08 in avg | Fort Peck Hatchery |
| May 29, 2020 | Rainbow Trout | 1,000 | 7.13 in avg | Fort Peck Hatchery |
| June 5, 2019 | Rainbow Trout | 2,000 | 7.33 in avg | Fort Peck Hatchery |
Records shown exactly as published by Montana Fish, Wildlife & Parks. An event missing here does not mean the water was not stocked - some plants go unreported or are published elsewhere.
Data source: Montana Fish, Wildlife & Parks. Last updated: .