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About this water
Helena Valley Regulating Reservoir is a 564 acre reservoir in Lewis and Clark County, Montana. State records show it stocked 39 times between 2000 and 2026. Every recorded release has been kokanee. 1,563,217 kokanee have gone in across 39 releases.
Boat access nearby
One mapped launch sits within 2 miles of Helena Valley Regulating Reservoir. Ramp data comes from the USGS national boat-ramp inventory.
- Helena Valley ReservoirHelena Valley ReservoirPublic
Stocking history
39 recorded stockings
| Date | Species | Number | Size | Hatchery |
|---|---|---|---|---|
| May 12, 2026 | Kokanee · Lake Mary Ronan | 31,010 | 3.4" | Big Springs Trout Hatchery |
| May 19, 2025 | Kokanee · Lake Mary Ronan | 30,525 | 3.6" | Big Springs Trout Hatchery |
| May 17, 2024 | Kokanee · Lake Mary Ronan | 62,415 | 3.4" | Big Springs Trout Hatchery |
| May 10, 2023 | Kokanee · Lake Mary Ronan | 31,215 | 3.4" | Big Springs Trout Hatchery |
| May 10, 2022 | Kokanee · Lake Mary Ronan | 50,014 | 3.5" | Big Springs Trout Hatchery |
| Apr 28, 2021 | Kokanee · Lake Mary Ronan | 40,009 | 2.9" | Big Springs Trout Hatchery |
| May 13, 2020 | Kokanee · Lake Mary Ronan | 55,420 | 2.5" | Flathead Lake Salmon Hatchery |
| May 16, 2019 | Kokanee · Lake Mary Ronan | 57,750 | 2.0" | Flathead Lake Salmon Hatchery |
| May 22, 2018 | Kokanee · Lake Mary Ronan | 49,528 | 2.0" | Flathead Lake Salmon Hatchery |
| May 10, 2017 | Kokanee · Lake Mary Ronan | 50,092 | 2.0" | Flathead Lake Salmon Hatchery |
| May 5, 2016 | Kokanee · Lake Mary Ronan | 65,003 | 1.9" | Flathead Lake Salmon Hatchery |
| May 19, 2015 | Kokanee · Lake Mary Ronan | 68,192 | 2.1" | Flathead Lake Salmon Hatchery |
Showing the 12 most recent of 39. Stocking records for Helena Valley Regulating 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.
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