Supenau Reservoir trout stocking
Hill County, Montana · lake · 2,834 ft elevation
Supenau Reservoir was last stocked 8 weeks ago (Sep 16, 2026). We have 4 stockings on record since Jun 4, 2025, 2 in the last 12 months (2,500 fish). Most stockings come in September. Species stocked: rainbow trout.
- The third most stocked of 7 waters in Hill County.
- Stocked more often than 83% of Montana waters on our record.
Weather at Supenau Reservoir
- Today42°FSunnywind 0 to 5 mph
- Tonight27°FPartly Cloudywind 0 to 3 mph
- Thursday49°FMostly Sunnywind 3 to 14 mph
- Thursday Night33°FPartly Cloudy1% rain · wind 12 to 15 mph
- Friday51°FSunnywind 12 to 17 mph
- Friday Night37°FPartly Cloudywind 15 to 18 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Supenau Reservoir stocked?
Most stockings come in September.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | ||||||||||
| 2025 | 1 | 1 |
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Rainbow trout | 4 | 5,000 | 1,250 | 8.0 in |
Stocking history
20262 stockings · 2,500 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Sep 16Latest Wednesday · 8 weeks ago | Rainbow trout | 1,500 | 8.0 in | 11 weeks | Giant Springs Trout Hatchery |
Jul 1 Wednesday | Rainbow trout | 1,000 | 7.0 in | 295 days | Fort Peck Hatchery |
20252 stockings · 2,500 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Sep 9 Tuesday | Rainbow trout | 1,500 | 8.0 in | 97 days | Giant Springs Trout Hatchery |
Jun 4 Wednesday | Rainbow trout | 1,000 | 7.0 in | Fort Peck 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 Supenau Reservoir?
Hill County, Montana. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Supenau Reservoir
- Beaver Creekstream · 8 mistocked May 11, 2026
- Bailey Reservoirlake · 17 mistocked Oct 1, 2026
- Beaver Creek Reservoirlake · 18 mistocked Jun 18, 2026
- Clear Creekstream · 20 mistocked May 21, 2025
- Reser Reservoirlake · 20 mistocked Sep 22, 2026
- Bearpaw Lake (; Beaver Lake)lake · 24 mistocked Sep 16, 2026
All stocked waters in Hill CountyStocked this week in Montana
Questions about Supenau Reservoir
- When was Supenau Reservoir last stocked?
- The latest reported stocking was Sep 16, 2026 (rainbow trout, 1,500 fish), according to Montana agency reports.
- How often is Supenau Reservoir stocked?
- It was stocked 2 times in the last 12 months. Across all years on record, most stockings come in September.
- Is Supenau Reservoir stocked often?
- The third most stocked of 7 waters in Hill County. 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 Supenau Reservoir?
- Rainbow trout (4 stockings, 5,000 fish).