Hansen Reservoir trout stocking
Fergus County, Montana · lake · 4,244 ft elevation
Hansen Reservoir was last stocked 5 months ago (Jun 18, 2026). We have 4 stockings on record since Jun 17, 2025, 1 in the last 12 months (950 fish). Most stockings come in June. Species stocked: westslope cutthroat trout, tiger trout.
- Number 4 of 18 stocked waters in Fergus County by stocking days.
- Stocked more often than 83% of Montana waters on our record.
Weather at Hansen Reservoir
- Today64°FPartly Sunny3% rain · wind 6 to 26 mph
- Tonight37°FMostly Cloudy9% rain · wind 5 to 9 mph
- Monday55°FPartly Sunny1% rain · wind 5 mph
- Monday Night39°FMostly Cloudy13% rain · wind 2 to 8 mph
- Tuesday56°FMostly Sunny13% rain · wind 8 to 24 mph
- Tuesday Night39°FPartly Cloudy1% rain · wind 9 to 13 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Hansen Reservoir stocked?
Most stockings come in June. Stocked 3 times in 2025, mostly in June, about every 118 days.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | |||||||||||
| 2025 | 2 | 1 |
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Westslope cutthroat trout | 2 | 3,990 | 1,995 | 5.3 in |
| Tiger trout | 2 | 1,000 | 500 | 6.8 in |
Stocking history
20261 stocking · 950 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Jun 18Latest Thursday | Westslope cutthroat trout | 950 | 5.3 in | 246 days | Washoe Park Trout Hatchery |
20253 stockings · 4,040 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Oct 15 Wednesday | Tiger trout | 500 | 6.8 in | 118 days | Giant Springs Trout Hatchery |
Jun 19 Thursday | Tiger trout | 500 | 4.0 in | 2 days | Giant Springs Trout Hatchery |
Jun 17 Tuesday | Westslope cutthroat trout | 3,040 | 4.2 in | Washoe Park 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 Hansen Reservoir?
Fergus County, Montana. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Hansen Reservoir
- Elks Country Club Pondlake · 5 mistocked May 26, 2026
- Big Casino Creek Reservoirlake · 5 mistocked Jul 8, 2025
- Upper Frog Pondlake · 6 mistocked Sep 15, 2026
- Lower Frog Pondlake · 6 mistocked Sep 15, 2026
- Carters Pondlake · 11 mistocked May 21, 2026
- Upper Carters Pondlake · 12 mistocked Jun 3, 2026
- Unnamed pond on trib of Maiden Creeklake · 13 mistocked Nov 4, 2025
- Crystal Lakelake · 16 mistocked Jun 18, 2026
All stocked waters in Fergus CountyStocked this week in Montana
Questions about Hansen Reservoir
- When was Hansen Reservoir last stocked?
- The latest reported stocking was Jun 18, 2026 (westslope cutthroat trout, 950 fish), according to Montana agency reports.
- How often is Hansen Reservoir stocked?
- Stocked 3 times in 2025, mostly in June, about every 118 days. Across all years on record, most stockings come in June.
- Is Hansen Reservoir stocked often?
- Number 4 of 18 stocked waters in Fergus County by stocking days. Stocked more often than 83% of Montana waters on our record. We count each day the agency reported stocking it.
- What kind of trout are stocked in Hansen Reservoir?
- Westslope cutthroat trout (2 stockings, 3,990 fish); Tiger trout (2 stockings, 1,000 fish).