Marshall Reservoir Fish Stocking
Montana · 1984–2025 on record
According to Montana fish & wildlife agency, Marshall Reservoir was last stocked August 28, 2025 with Largemouth Bass. Marshall Reservoir has 13 stocking records on file, spanning 1984–2025, with about 15,472 fish stocked over that period.
When Marshall Reservoir is stocked
Marshall Reservoir is typically stocked in summer, most often in August — 4 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Marshall Reservoir, freshest activity first.
Ayers Pond
5 mi2 species · 8 records
Last stocked August 2025
Singleton Reservoir
12 mi2 species · 9 records
Last stocked July 2020
Beardsley Pond
11 mi1 species · 31 records
Last stocked June 2020
Ayers Pond #1
6 mi2 species · 6 records
Last stocked April 2013
Ayers Pond #2
6 mi2 species · 11 records
Last stocked August 2011
Beardsley Jim #2 (Hough)
11 mi1 species · 2 records
Last stocked July 1989
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| August 28, 2025 | Largemouth Bass | 1,000 | 1.84" | Montana fish & wildlife agency |
| April 9, 2025 | Largemouth Bass | 491 | 6.79" | Montana fish & wildlife agency |
| April 9, 2025 | Rainbow Trout | 500 | 4.18" | Montana fish & wildlife agency |
| July 19, 2019 | Largemouth Bass | 1,000 | 1.56" | Montana fish & wildlife agency |
| May 2, 2018 | Rainbow Trout | 1,000 | 2.01" | Montana fish & wildlife agency |
| August 11, 2017 | Largemouth Bass | 1,000 | 1.89" | Montana fish & wildlife agency |
| May 8, 2017 | Rainbow Trout | 1,000 | 1.98" | Montana fish & wildlife agency |
| August 10, 2011 | Largemouth Bass | 2,000 | 1.6" | Montana fish & wildlife agency |
Show 5 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| July 11, 2006 | Largemouth Bass | 1,000 | 1.2" | Montana fish & wildlife agency |
| April 7, 2006 | Rainbow Trout | 1,000 | 2.4" | Montana fish & wildlife agency |
| June 11, 1987 | Largemouth Bass | 3,481 | 0.5" | Montana fish & wildlife agency |
| August 8, 1984 | White Crappie | 1,000 | 1" | Montana fish & wildlife agency |
| July 31, 1984 | Largemouth Bass | 1,000 | 2" | Montana fish & wildlife agency |
Frequently asked
When was Marshall Reservoir last stocked?
According to Montana fish & wildlife agency, Marshall Reservoir was last stocked August 28, 2025 with Largemouth Bass.
What fish species are stocked in Marshall Reservoir?
Marshall Reservoir is stocked with Largemouth Bass, Rainbow Trout, and White Crappie.
What time of year is Marshall Reservoir stocked?
Marshall Reservoir is typically stocked in summer, most often in August.
How often is Marshall Reservoir stocked?
Marshall Reservoir is stocked intermittently — 13 recorded stockings between 1984 and 2025.
How many fish have been stocked in Marshall Reservoir?
About 15,472 fish have been stocked in Marshall Reservoir across 13 recorded events since 1984, per Montana fish & wildlife agency.
What size are the fish stocked in Marshall Reservoir?
Fish stocked in Marshall Reservoir average about 2.2 inches, based on the sizes the agency reported.