Montana stocking report
Lower Hassler Reservoir
13 records Last stocked: July 27, 2023
The short answer
Lower Hassler Reservoir was last stocked on July 27, 2023: 250 Largemouth Bass (1.8 in avg).
Location map
Lower Hassler Reservoir location context
Lower Hassler ReservoirFergus County Holgate ReservoirFergus County Lower Frog PondFergus County Upper Frog PondFergus County Olsen PondFergus 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 |
|---|---|---|---|---|
| July 27, 2023 | Largemouth Bass | 250 | 1.8 in avg | Miles City Fish Hatchery |
| July 27, 2020 | Largemouth Bass | 250 | 1.92 in avg | Miles City Fish Hatchery |
| July 26, 2019 | Largemouth Bass | 250 | 1.54 in avg | Miles City Fish Hatchery |
| August 2, 2017 | Largemouth Bass | 250 | 40.800000000000004 in avg | Miles City Fish Hatchery |
| July 22, 2015 | Largemouth Bass | 250 | 3 in avg | Miles City Fish Hatchery |
| May 17, 2013 | Rainbow Trout | 200 | 7.75 in avg | Big Springs Trout Hatchery |
| April 16, 2012 | Rainbow Trout | 203 | 7 in avg | Big Springs Trout Hatchery |
| May 17, 2011 | Rainbow Trout | 201 | 7.11 in avg | Big Springs Trout Hatchery |
| May 17, 2010 | Rainbow Trout | 201 | 7.61 in avg | Big Springs Trout Hatchery |
| May 19, 2009 | Rainbow Trout | 201 | 8 in avg | Big Springs Trout Hatchery |
| May 7, 2008 | Rainbow Trout | 196 | 7.74 in avg | Big Springs Trout Hatchery |
| July 13, 2007 | Rainbow Trout | 50 | 8.09 in avg | Big Springs Trout Hatchery |
| July 13, 2007 | Rainbow Trout | 498 | 5.72 in avg | Big 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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