Rainbow Dam Reservoir Fish Stocking
Montana · 1937–2025 on record
According to Montana fish & wildlife agency, Rainbow Dam Reservoir was last stocked October 14, 2025 with Rainbow Trout. Rainbow Dam Reservoir has 487 stocking records on file, spanning 1937–2025, with about 1,264,933 fish stocked over that period.
When Rainbow Dam Reservoir is stocked
Rainbow Dam Reservoir is typically stocked in summer, most often in July — 142 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Rainbow Dam Reservoir, freshest activity first.
Wadsworth Lake
8 mi5 species · 104 records
Last stocked May 2026
Giant Springs Fishing Pond
1 mi2 species · 202 records
Last stocked October 2025
Pow Wow Pond
3 mi3 species · 89 records
Last stocked June 2021
Woodland Estates Pond
11 mi1 species · 25 records
Last stocked May 2012
Ryan Reservoir
5 mi1 species · 1 records
Last stocked June 2005
Cochrane Reservoir
3 mi2 species · 5 records
Last stocked May 2005
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| October 14, 2025 | Rainbow Trout | 2,352 | 8.66" | Montana fish & wildlife agency |
| September 2, 2025 | Rainbow Trout | 1,155 | 10.7" | Montana fish & wildlife agency |
| September 2, 2025 | Rainbow Trout | 2,000 | 7.61" | Montana fish & wildlife agency |
| July 30, 2025 | Rainbow Trout | 1,177 | 9.59" | Montana fish & wildlife agency |
| July 30, 2025 | Rainbow Trout | 4,274 | 7.09" | Montana fish & wildlife agency |
| July 10, 2025 | Rainbow Trout | 500 | 6.66" | Montana fish & wildlife agency |
| June 20, 2025 | Rainbow Trout | 2,000 | 8.25" | Montana fish & wildlife agency |
| June 16, 2025 | Rainbow Trout | 1,500 | 6.11" | Montana fish & wildlife agency |
Show 42 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| April 28, 2025 | Rainbow Trout | 2,000 | 6.88" | Montana fish & wildlife agency |
| September 13, 2024 | Rainbow Trout | 4,000 | 7.58" | Montana fish & wildlife agency |
| August 20, 2024 | Rainbow Trout | 2,000 | 6.65" | Montana fish & wildlife agency |
| August 1, 2024 | Rainbow Trout | 2,000 | 6.02" | Montana fish & wildlife agency |
| July 9, 2024 | Rainbow Trout | 2,000 | 7.93" | Montana fish & wildlife agency |
| May 1, 2024 | Rainbow Trout | 2,000 | 6.62" | Montana fish & wildlife agency |
| September 15, 2023 | Brown Trout | 5,920 | 6.57" | Montana fish & wildlife agency |
| September 13, 2023 | Rainbow Trout | 4,000 | 6.98" | Montana fish & wildlife agency |
| August 1, 2023 | Rainbow Trout | 1,108 | 9.21" | Montana fish & wildlife agency |
| July 17, 2023 | Rainbow Trout | 2,679 | 5.97" | Montana fish & wildlife agency |
| July 14, 2023 | Rainbow Trout | 2,000 | 8.42" | Montana fish & wildlife agency |
| April 25, 2023 | Rainbow Trout | 2,000 | 6.53" | Montana fish & wildlife agency |
| September 23, 2022 | Rainbow Trout | 8,556 | 7.27" | Montana fish & wildlife agency |
| August 24, 2022 | Rainbow Trout | 1,000 | 6.97" | Montana fish & wildlife agency |
| August 16, 2022 | Rainbow Trout | 1,624 | 6.43" | Montana fish & wildlife agency |
| July 20, 2022 | Rainbow Trout | 1,267 | 9.24" | Montana fish & wildlife agency |
| July 14, 2022 | Rainbow Trout | 376 | 5.47" | Montana fish & wildlife agency |
| July 13, 2022 | Rainbow Trout | 500 | 5.47" | Montana fish & wildlife agency |
| July 5, 2022 | Rainbow Trout | 548 | 5.69" | Montana fish & wildlife agency |
| April 21, 2022 | Rainbow Trout | 2,000 | 6.71" | Montana fish & wildlife agency |
| October 26, 2021 | Rainbow Trout | 8,527 | 8.48" | Montana fish & wildlife agency |
| August 17, 2021 | Rainbow Trout | 1,000 | 6.67" | Montana fish & wildlife agency |
| August 5, 2021 | Rainbow Trout | 1,000 | 6.12" | Montana fish & wildlife agency |
| July 28, 2021 | Rainbow Trout | 500 | 6" | Montana fish & wildlife agency |
| July 19, 2021 | Rainbow Trout | 1,000 | 5.27" | Montana fish & wildlife agency |
| July 9, 2021 | Rainbow Trout | 500 | 5.23" | Montana fish & wildlife agency |
| July 1, 2021 | Rainbow Trout | 613 | 8.62" | Montana fish & wildlife agency |
| April 20, 2021 | Rainbow Trout | 2,000 | 6.42" | Montana fish & wildlife agency |
| September 15, 2020 | Rainbow Trout | 4,000 | 7.55" | Montana fish & wildlife agency |
| August 6, 2020 | Rainbow Trout | 2,000 | 9.75" | Montana fish & wildlife agency |
| April 23, 2020 | Rainbow Trout | 2,000 | 6.57" | Montana fish & wildlife agency |
| September 19, 2019 | Rainbow Trout | 1,721 | 7.84" | Montana fish & wildlife agency |
| September 12, 2019 | Rainbow Trout | 4,000 | 7.92" | Montana fish & wildlife agency |
| August 21, 2019 | Rainbow Trout | 964 | 9.31" | Montana fish & wildlife agency |
| July 8, 2019 | Rainbow Trout | 1,000 | 7.7" | Montana fish & wildlife agency |
| July 3, 2019 | Rainbow Trout | 1,000 | 7.7" | Montana fish & wildlife agency |
| April 26, 2019 | Rainbow Trout | 2,000 | 6.13" | Montana fish & wildlife agency |
| August 14, 2018 | Rainbow Trout | 494 | 9.3" | Montana fish & wildlife agency |
| August 7, 2018 | Rainbow Trout | 800 | 9.11" | Montana fish & wildlife agency |
| July 31, 2018 | Rainbow Trout | 1,145 | 7.8" | Montana fish & wildlife agency |
| July 24, 2018 | Rainbow Trout | 950 | 7.8" | Montana fish & wildlife agency |
| December 20, 2017 | Rainbow Trout | 14,486 | 2.43" | Montana fish & wildlife agency |
Showing 50 of 487 stocking records.
Frequently asked
When was Rainbow Dam Reservoir last stocked?
According to Montana fish & wildlife agency, Rainbow Dam Reservoir was last stocked October 14, 2025 with Rainbow Trout.
What fish species are stocked in Rainbow Dam Reservoir?
Rainbow Dam Reservoir is stocked with Rainbow Trout, Brown Trout, Goldfish, and Walleye.
What time of year is Rainbow Dam Reservoir stocked?
Rainbow Dam Reservoir is typically stocked in summer, most often in July.
How often is Rainbow Dam Reservoir stocked?
Rainbow Dam Reservoir has been stocked about 5 times a year — 487 recorded stockings between 1937 and 2025.
How many fish have been stocked in Rainbow Dam Reservoir?
About 1,264,933 fish have been stocked in Rainbow Dam Reservoir across 487 recorded events since 1937, per Montana fish & wildlife agency.
What size are the fish stocked in Rainbow Dam Reservoir?
Fish stocked in Rainbow Dam Reservoir average about 8.7 inches, based on the sizes the agency reported.