Helena Valley Regulating Reservoir trout stocking
Lewis and Clark County, Montana · lake · 3,817 ft elevation
Helena Valley Regulating Reservoir was last stocked 6 months ago (May 12, 2026). We have 2 stockings on record since May 19, 2025, 1 in the last 12 months (31,010 fish). Species stocked: kokanee.
- Number 5 of 12 stocked waters in Lewis and Clark County by stocking days.
- Stocked about as often as a typical Montana water on our record.
Weather at Helena Valley Regulating Reservoir
- Today49°FMostly Sunnywind 1 mph
- Tonight25°FMostly Clearwind 3 mph
- Thursday49°FPartly Sunny1% rain · wind 1 to 5 mph
- Thursday Night27°FPartly Cloudy1% rain · wind 6 mph
- Friday51°FMostly Sunnywind 5 to 9 mph
- Friday Night32°FPartly Cloudywind 5 to 14 mph
Forecast from the National Weather Service for this location, refreshed hourly.
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Kokanee | 2 | 61,535 | 30,768 | 3.6 in |
Stocking history
20261 stocking · 31,010 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
May 12Latest Tuesday | Kokanee | 31,010 | 3.4 in | 358 days | Big Springs Trout Hatchery |
20251 stocking · 30,525 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
May 19 Monday | Kokanee | 30,525 | 3.6 in | Big Springs Trout Hatchery |
From Montana fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go. Seasons and limits: Montana fishing regulations.
Where is Helena Valley Regulating Reservoir?
Lewis and Clark County, Montana. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Helena Valley Regulating Reservoir
- Hauser Reservoirlake · 4 mistocked Oct 6, 2026
- Spring Meadow Lakelake · 10 mistocked Sep 8, 2026
- Holter Reservoirlake · 21 mistocked Sep 24, 2026
- Canyon Ferry Lakelake · 22 mistocked Oct 5, 2026
All stocked waters in Lewis and Clark CountyStocked this week in Montana
Questions about Helena Valley Regulating Reservoir
- When was Helena Valley Regulating Reservoir last stocked?
- The latest reported stocking was May 12, 2026 (kokanee, 31,010 fish), according to Montana agency reports.
- How often is Helena Valley Regulating Reservoir stocked?
- It was stocked once in the last 12 months.
- Is Helena Valley Regulating Reservoir stocked often?
- Number 5 of 12 stocked waters in Lewis and Clark County by stocking days. Stocked about as often as a typical Montana water on our record. We count each day the agency reported stocking it.
- What kind of trout are stocked in Helena Valley Regulating Reservoir?
- Kokanee (2 stockings, 61,535 fish).