Rainbow Lake Fish Stocking
Montana · 1932–2025 on record
According to Montana fish & wildlife agency, Rainbow Lake was last stocked September 30, 2025 with Cutthroat Trout. Rainbow Lake has 276 stocking records on file, spanning 1932–2025, with about 2,941,526 fish stocked over that period.
When Rainbow Lake is stocked
Rainbow Lake is typically stocked in spring and summer, most often in May — 62 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Rainbow Lake, freshest activity first.
Lake Mary Ronan
20 mi8 species · 685 records
Last stocked June 2026
Terrace Lake
5 mi6 species · 26 records
Last stocked August 2024
Cabin Lake
15 mi2 species · 35 records
Last stocked August 2024
Hubbart Reservoir
15 mi2 species · 125 records
Last stocked June 2024
Horseshoe Lake
16 mi10 species · 69 records
Last stocked April 2024
Corona Lake
9 mi2 species · 26 records
Last stocked June 2013
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| September 30, 2025 | Cutthroat Trout | 2,700 | 2" | Montana fish & wildlife agency |
| October 1, 2024 | Cutthroat Trout | 2,700 | 2" | Montana fish & wildlife agency |
| August 24, 2024 | Cutthroat Trout | 600 | 1.66" | Montana fish & wildlife agency |
| August 9, 2024 | Cutthroat Trout | 1,000 | 1.5" | Montana fish & wildlife agency |
| August 6, 2024 | Cutthroat Trout | 1,000 | 1.5" | Montana fish & wildlife agency |
| October 19, 2023 | Cutthroat Trout | 2,700 | 1.98" | Montana fish & wildlife agency |
| July 25, 2022 | Cutthroat Trout | 996 | 1.31" | Montana fish & wildlife agency |
| September 4, 2021 | Cutthroat Trout | 600 | 1.99" | Montana fish & wildlife agency |
Show 42 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| August 10, 2021 | Cutthroat Trout | 1,000 | 2" | Montana fish & wildlife agency |
| July 13, 2021 | Cutthroat Trout | 1,000 | 2" | Montana fish & wildlife agency |
| August 5, 2019 | Cutthroat Trout | 3,000 | 1.37" | Montana fish & wildlife agency |
| September 1, 2018 | Cutthroat Trout | 600 | 2.43" | Montana fish & wildlife agency |
| October 6, 2017 | Golden Trout | 1,000 | 1.33" | Montana fish & wildlife agency |
| September 29, 2017 | Cutthroat Trout | 1,000 | 1.99" | Montana fish & wildlife agency |
| August 28, 2015 | Cutthroat Trout | 986 | 1.65" | Montana fish & wildlife agency |
| September 21, 2014 | Cutthroat Trout | 634 | 2.11" | Montana fish & wildlife agency |
| September 4, 2014 | Golden Trout | 1,000 | 1" | Montana fish & wildlife agency |
| September 4, 2014 | Cutthroat Trout | 1,051 | 1.45" | Montana fish & wildlife agency |
| August 5, 2013 | Cutthroat Trout | 999 | 1.1" | Montana fish & wildlife agency |
| September 18, 2012 | Cutthroat Trout | 922 | 2.07" | Montana fish & wildlife agency |
| August 14, 2012 | Cutthroat Trout | 1,000 | 1.81" | Montana fish & wildlife agency |
| August 5, 2012 | Cutthroat Trout | 1,000 | 1.81" | Montana fish & wildlife agency |
| September 5, 2011 | Cutthroat Trout | 600 | 2.21" | Montana fish & wildlife agency |
| August 8, 2011 | Cutthroat Trout | 1,013 | 1.52" | Montana fish & wildlife agency |
| July 22, 2010 | Cutthroat Trout | 827 | 1.27" | Montana fish & wildlife agency |
| August 10, 2009 | Cutthroat Trout | 1,000 | 2" | Montana fish & wildlife agency |
| August 4, 2009 | Cutthroat Trout | 1,001 | 1.49" | Montana fish & wildlife agency |
| May 26, 2009 | Rainbow Trout | 1,036 | 4" | Montana fish & wildlife agency |
| September 11, 2008 | Cutthroat Trout | 996 | 1.9" | Montana fish & wildlife agency |
| September 6, 2008 | Cutthroat Trout | 600 | 2" | Montana fish & wildlife agency |
| July 28, 2008 | Cutthroat Trout | 1,000 | 1.28" | Montana fish & wildlife agency |
| October 9, 2007 | Rainbow Trout | 2,709 | 8.8" | Montana fish & wildlife agency |
| August 8, 2007 | Cutthroat Trout | 600 | 1.85" | Montana fish & wildlife agency |
| July 25, 2007 | Cutthroat Trout | 1,020 | 1.3" | Montana fish & wildlife agency |
| June 26, 2007 | Rainbow Trout | 16,728 | 7" | Montana fish & wildlife agency |
| June 7, 2007 | Rainbow Trout | 1,119 | 4.06" | Montana fish & wildlife agency |
| July 27, 2006 | Cutthroat Trout | 900 | 1.83" | Montana fish & wildlife agency |
| July 25, 2006 | Cutthroat Trout | 1,012 | 1.29" | Montana fish & wildlife agency |
| July 12, 2005 | Cutthroat Trout | 995 | 1.32" | Montana fish & wildlife agency |
| May 5, 2005 | Rainbow Trout | 1,128 | 3.81" | Montana fish & wildlife agency |
| August 6, 2004 | Cutthroat Trout | 1,000 | 2.33" | Montana fish & wildlife agency |
| July 13, 2004 | Cutthroat Trout | 1,037 | 1.24" | Montana fish & wildlife agency |
| October 21, 2003 | Rainbow Trout | 1,995 | 4.15" | Montana fish & wildlife agency |
| July 31, 2003 | Cutthroat Trout | 1,000 | 1.8" | Montana fish & wildlife agency |
| July 30, 2003 | Cutthroat Trout | 1,128 | 1.41" | Montana fish & wildlife agency |
| May 5, 2003 | Rainbow Trout | 1,046 | 3.69" | Montana fish & wildlife agency |
| July 31, 2002 | Cutthroat Trout | 1,023 | 2" | Montana fish & wildlife agency |
| August 7, 2001 | Cutthroat Trout | 600 | 1.7" | Montana fish & wildlife agency |
| May 29, 2001 | Rainbow Trout | 1,040 | 2.7" | Montana fish & wildlife agency |
| September 15, 2000 | Cutthroat Trout | 750 | 2.4" | Montana fish & wildlife agency |
Showing 50 of 276 stocking records.
Frequently asked
When was Rainbow Lake last stocked?
According to Montana fish & wildlife agency, Rainbow Lake was last stocked September 30, 2025 with Cutthroat Trout.
What fish species are stocked in Rainbow Lake?
Rainbow Lake is stocked with Cutthroat Trout, Golden Trout, Rainbow Trout, Coho Salmon, Walleye, Brook Trout, Salmon, Largemouth Bass, and Arctic Grayling.
What time of year is Rainbow Lake stocked?
Rainbow Lake is typically stocked in spring and summer, most often in May.
How often is Rainbow Lake stocked?
Rainbow Lake has been stocked about 3 times a year — 276 recorded stockings between 1932 and 2025.
How many fish have been stocked in Rainbow Lake?
About 2,941,526 fish have been stocked in Rainbow Lake across 276 recorded events since 1932, per Montana fish & wildlife agency.
What size are the fish stocked in Rainbow Lake?
Fish stocked in Rainbow Lake average about 5.1 inches, based on the sizes the agency reported.