Lanning Reservoir trout stocking
Chouteau County, Montana · lake · 3,030 ft elevation
Lanning Reservoir was last stocked 5 months ago (Jun 15, 2026). We have 2 stockings on record since Jun 16, 2025, 1 in the last 12 months (1,000 fish). Species stocked: rainbow trout.
Last stocked
5 months ago
Jun 15, 2026
Next planned
Not announced
Last 12 months
1 stocking
1,000 fish
On record
2 stockings
since Jun 16, 2025
- Number 4 of 9 stocked waters in Chouteau County by stocking days.
- Stocked about as often as a typical Montana water on our record.
Weather at Lanning Reservoir
- Today64°FMostly Cloudy2% rain · wind 13 to 26 mph
- Tonight36°FMostly Cloudy1% rain · wind 2 to 13 mph
- Monday52°FPartly Sunny1% rain · wind 2 to 6 mph
- Monday Night39°FMostly Cloudy3% rain · wind 5 to 8 mph
- Tuesday58°FMostly Sunny3% rain · wind 6 to 20 mph
- Tuesday Night40°FPartly Cloudy1% rain · wind 5 to 10 mph
Forecast from the National Weather Service for this location, refreshed hourly.
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Rainbow trout | 2 | 2,000 | 1,000 | 3.8 in |
Stocking history
20261 stocking · 1,000 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Jun 15Latest Monday | Rainbow trout | 1,000 | 3.5 in | 52 weeks | Giant Springs Trout Hatchery |
20251 stocking · 1,000 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Jun 16 Monday | Rainbow trout | 1,000 | 3.8 in | Giant 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 Lanning Reservoir?
Chouteau County, Montana. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Lanning Reservoir
- Gasvoda Reservoirlake · 4 mistocked Jun 15, 2026
- Crow Coulee Reservoirlake · 15 mistocked Jun 18, 2026
- Iliad Reservoirlake · 16 mistocked Jul 7, 2026
- Schoonover Reservoir 2lake · 22 mistocked Jun 22, 2026
- Marias Riverstream · 23 mistocked Sep 17, 2026
All stocked waters in Chouteau CountyStocked this week in Montana
Questions about Lanning Reservoir
- When was Lanning Reservoir last stocked?
- The latest reported stocking was Jun 15, 2026 (rainbow trout, 1,000 fish), according to Montana agency reports.
- How often is Lanning Reservoir stocked?
- It was stocked once in the last 12 months.
- Is Lanning Reservoir stocked often?
- Number 4 of 9 stocked waters in Chouteau 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 Lanning Reservoir?
- Rainbow trout (2 stockings, 2,000 fish).