Montana stocking report
Lanning Reservoir
26 records Last stocked: June 16, 2025
The short answer
Lanning Reservoir was last stocked on June 16, 2025: 1,000 Rainbow Trout (3.75 in avg).
Location map
Lanning Reservoir location context
Lanning ReservoirChouteau County Briggs PondChouteau County Eightmile SpringsChouteau County Leningtons ReservoirChouteau County Gasvoda ReservoirChouteau County
Pins use the finest location published with the stocking record. County-level pins show area context, not an exact access point; confirm access and directions with the official agency source.
Agency records
Full stocking history
| Date | Species | Fish | Size | Hatchery |
|---|---|---|---|---|
| June 16, 2025 | Rainbow Trout | 1,000 | 3.75 in avg | Giant Springs Trout Hatchery |
| June 11, 2024 | Rainbow Trout | 1,000 | 3.71 in avg | Giant Springs Trout Hatchery |
| June 21, 2023 | Rainbow Trout | 1,000 | 3.42 in avg | Giant Springs Trout Hatchery |
| June 9, 2022 | Rainbow Trout | 1,000 | 3.24 in avg | Giant Springs Trout Hatchery |
| June 3, 2021 | Rainbow Trout | 1,000 | 3.4 in avg | Giant Springs Trout Hatchery |
| June 3, 2020 | Rainbow Trout | 1,000 | 3.37 in avg | Giant Springs Trout Hatchery |
| June 5, 2019 | Rainbow Trout | 1,000 | 3.5 in avg | Giant Springs Trout Hatchery |
| June 8, 2018 | Rainbow Trout | 1,000 | 3.1 in avg | Giant Springs Trout Hatchery |
| June 20, 2017 | Rainbow Trout | 1,000 | 3.6 in avg | Giant Springs Trout Hatchery |
| June 9, 2015 | Rainbow Trout | 1,000 | 3.61 in avg | Giant Springs Trout Hatchery |
| June 12, 2014 | Rainbow Trout | 1,000 | 3.6 in avg | Giant Springs Trout Hatchery |
| June 12, 2013 | Rainbow Trout | 1,150 | 3.85 in avg | Giant Springs Trout Hatchery |
| July 5, 2012 | Rainbow Trout | 1,000 | 3.6 in avg | Giant Springs Trout Hatchery |
| June 28, 2011 | Rainbow Trout | 1,000 | 3.5 in avg | Giant Springs Trout Hatchery |
| June 10, 2010 | Rainbow Trout | 1,000 | 3 in avg | Giant Springs Trout Hatchery |
| June 30, 2009 | Rainbow Trout | 1,000 | 4 in avg | Giant Springs Trout Hatchery |
| June 25, 2008 | Rainbow Trout | 1,000 | 3.5 in avg | Giant Springs Trout Hatchery |
| June 22, 2007 | Rainbow Trout | 1,000 | 4.1 in avg | Giant Springs Trout Hatchery |
| June 30, 2006 | Rainbow Trout | 1,100 | 3 in avg | Giant Springs Trout Hatchery |
| July 14, 2005 | Rainbow Trout | 1,000 | 3.9 in avg | Giant Springs Trout Hatchery |
| July 13, 2004 | Rainbow Trout | 1,000 | 3.6 in avg | Giant Springs Trout Hatchery |
| June 4, 2003 | Rainbow Trout | 1,000 | 4.6000000000000005 in avg | Giant Springs Trout Hatchery |
| June 15, 1994 | Rainbow Trout | 505 | 5.1000000000000005 in avg | Giant Springs Trout Hatchery |
| June 15, 1994 | Brook Trout | 1,016 | 4 in avg | Giant Springs Trout Hatchery |
| June 9, 1993 | Brook Trout | 1,001 | 3.3000000000000003 in avg | Murray Springs Trout Hatchery |
| July 2, 1991 | Rainbow Trout | 1,000 | 4 in avg | Giant Springs Trout Hatchery |
Records shown exactly as published by Montana Fish, Wildlife & Parks. An event missing here does not mean the water was not stocked - some plants go unreported or are published elsewhere.
Data source: Montana Fish, Wildlife & Parks. Last updated: .
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