MT
Supenau Reservoir
LakeMT
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About this water
Supenau Reservoir is a reservoir in Montana. State records show it stocked 8 times between 2019 and 2025. Every recorded release has been rainbow trout. 11,000 rainbow trout have gone in across 8 releases.
Stocking history
8 recorded stockings
| Date | Species | Number | Size | Hatchery |
|---|---|---|---|---|
| Sep 9, 2025 | Rainbow Trout · Arlee | 1,500 | 8.0" | Giant Springs Trout Hatchery |
| Jun 4, 2025 | Rainbow Trout · Arlee X Erwin - Ennis | 1,000 | 7.0" | Fort Peck Hatchery |
| Jun 12, 2024 | Rainbow Trout · Arlee X Erwin - Ennis | 1,000 | 7.3" | Fort Peck Hatchery |
| Jul 5, 2023 | Rainbow Trout · Arlee X Erwin - Ennis | 1,000 | 6.7" | Fort Peck Hatchery |
| May 26, 2022 | Rainbow Trout · Arlee X Erwin - Ennis | 1,000 | 7.1" | Fort Peck Hatchery |
| Jun 14, 2021 | Rainbow Trout · Arlee X Erwin - Ennis | 2,500 | 7.1" | Fort Peck Hatchery |
| May 29, 2020 | Rainbow Trout · Arlee X Erwin - Ennis | 1,000 | 7.1" | Fort Peck Hatchery |
| Jun 5, 2019 | Rainbow Trout · Arlee X Erwin - Ennis | 2,000 | 7.3" | Fort Peck Hatchery |
Stocking records for Supenau Reservoir published by Montana Fish, Wildlife & Parks. Stocking does not guarantee fish are present. Check current regulations and access before you go. See the full Montana stocking report.
