Greenough Lake Fish Stocking
Montana · 1933–2026 on record
According to Montana fish & wildlife agency, Greenough Lake was last stocked June 10, 2026 with Rainbow Trout. Greenough Lake has 258 stocking records on file, spanning 1933–2026, with about 328,143 fish stocked over that period.
When Greenough Lake is stocked
Greenough Lake is typically stocked in summer, most often in June — 65 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Greenough Lake, freshest activity first.
Black Canyon Lake
6 mi2 species · 13 records
Last stocked August 2025
Line Lake
4 mi3 species · 20 records
Last stocked August 2024
Hairpin Lake
4 mi1 species · 2 records
Last stocked July 2022
Mountain Goat Lake
7 mi1 species · 13 records
Last stocked July 2022
Hellroaring Lake 6
3 mi2 species · 8 records
Last stocked August 2006
Basin Creek Lake, Lower
7 mi2 species · 3 records
Last stocked August 1997
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| June 10, 2026 | Rainbow Trout | 1,502 | 7.3" | Montana fish & wildlife agency |
| May 12, 2026 | Rainbow Trout | 1,514 | 6.68" | Montana fish & wildlife agency |
| August 27, 2025 | Rainbow Trout | 928 | 11.7" | Montana fish & wildlife agency |
| August 27, 2025 | Rainbow Trout | 870 | 11.7" | Montana fish & wildlife agency |
| July 31, 2025 | Rainbow Trout | 340 | 10.5" | Montana fish & wildlife agency |
| July 30, 2025 | Rainbow Trout | 1,170 | 12.1" | Montana fish & wildlife agency |
| June 10, 2025 | Rainbow Trout | 1,500 | 8.9" | Montana fish & wildlife agency |
| May 21, 2025 | Rainbow Trout | 554 | 9.75" | Montana fish & wildlife agency |
Show 42 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| May 13, 2025 | Rainbow Trout | 972 | 9.41" | Montana fish & wildlife agency |
| June 20, 2024 | Rainbow Trout | 1,984 | 7.77" | Montana fish & wildlife agency |
| May 30, 2024 | Rainbow Trout | 1,499 | 9" | Montana fish & wildlife agency |
| September 8, 2023 | Rainbow Trout | 1,500 | 8.42" | Montana fish & wildlife agency |
| August 15, 2023 | Rainbow Trout | 500 | 10.19" | Montana fish & wildlife agency |
| August 15, 2023 | Rainbow Trout | 1,150 | 7.51" | Montana fish & wildlife agency |
| June 12, 2023 | Rainbow Trout | 1,692 | 7.91" | Montana fish & wildlife agency |
| May 16, 2023 | Rainbow Trout | 2,090 | 8.14" | Montana fish & wildlife agency |
| May 24, 2022 | Rainbow Trout | 1,500 | 7.58" | Montana fish & wildlife agency |
| September 7, 2021 | Rainbow Trout | 1,505 | 8.15" | Montana fish & wildlife agency |
| August 17, 2021 | Rainbow Trout | 1,500 | 7.62" | Montana fish & wildlife agency |
| June 25, 2021 | Rainbow Trout | 1,536 | 7.69" | Montana fish & wildlife agency |
| May 6, 2021 | Rainbow Trout | 1,501 | 6.65" | Montana fish & wildlife agency |
| September 9, 2020 | Rainbow Trout | 763 | 7.7" | Montana fish & wildlife agency |
| June 15, 2020 | Rainbow Trout | 1,501 | 8.12" | Montana fish & wildlife agency |
| June 15, 2020 | Rainbow Trout | 100 | 13.48" | Montana fish & wildlife agency |
| May 12, 2020 | Rainbow Trout | 100 | 12.57" | Montana fish & wildlife agency |
| May 12, 2020 | Rainbow Trout | 1,491 | 7.54" | Montana fish & wildlife agency |
| August 13, 2019 | Rainbow Trout | 30 | 9.68" | Montana fish & wildlife agency |
| August 13, 2019 | Rainbow Trout | 1,497 | 7.32" | Montana fish & wildlife agency |
| July 12, 2019 | Rainbow Trout | 1,500 | 7.16" | Montana fish & wildlife agency |
| June 4, 2019 | Rainbow Trout | 1,500 | 6.7" | Montana fish & wildlife agency |
| May 17, 2019 | Rainbow Trout | 1,500 | 7.3" | Montana fish & wildlife agency |
| August 27, 2018 | Rainbow Trout | 1,545 | 7.4" | Montana fish & wildlife agency |
| July 25, 2018 | Rainbow Trout | 1,513 | 7.69" | Montana fish & wildlife agency |
| June 19, 2018 | Rainbow Trout | 1,510 | 7.03" | Montana fish & wildlife agency |
| May 16, 2018 | Rainbow Trout | 752 | 7.32" | Montana fish & wildlife agency |
| August 30, 2017 | Rainbow Trout | 1,516 | 10.39" | Montana fish & wildlife agency |
| July 19, 2017 | Rainbow Trout | 1,511 | 8.52" | Montana fish & wildlife agency |
| June 16, 2017 | Rainbow Trout | 1,508 | 8.42" | Montana fish & wildlife agency |
| May 8, 2017 | Rainbow Trout | 1,498 | 6.63" | Montana fish & wildlife agency |
| August 18, 2016 | Rainbow Trout | 1,499 | 10.12" | Montana fish & wildlife agency |
| July 25, 2016 | Rainbow Trout | 1,513 | 9.19" | Montana fish & wildlife agency |
| June 21, 2016 | Rainbow Trout | 1,530 | 7.75" | Montana fish & wildlife agency |
| April 22, 2016 | Rainbow Trout | 1,502 | 8.19" | Montana fish & wildlife agency |
| August 19, 2015 | Rainbow Trout | 955 | 9.02" | Montana fish & wildlife agency |
| August 19, 2015 | Rainbow Trout | 546 | 9.71" | Montana fish & wildlife agency |
| July 20, 2015 | Rainbow Trout | 1,500 | 8.37" | Montana fish & wildlife agency |
| June 23, 2015 | Rainbow Trout | 1,518 | 7.13" | Montana fish & wildlife agency |
| May 12, 2015 | Rainbow Trout | 1,505 | 7.46" | Montana fish & wildlife agency |
| August 20, 2014 | Rainbow Trout | 1,510 | 8.09" | Montana fish & wildlife agency |
| July 21, 2014 | Rainbow Trout | 1,503 | 8.27" | Montana fish & wildlife agency |
Showing 50 of 258 stocking records.
Frequently asked
When was Greenough Lake last stocked?
According to Montana fish & wildlife agency, Greenough Lake was last stocked June 10, 2026 with Rainbow Trout.
What fish species are stocked in Greenough Lake?
Greenough Lake is stocked with Rainbow Trout and Brook Trout.
What time of year is Greenough Lake stocked?
Greenough Lake is typically stocked in summer, most often in June.
How often is Greenough Lake stocked?
Greenough Lake has been stocked about 3 times a year — 258 recorded stockings between 1933 and 2026.
How many fish have been stocked in Greenough Lake?
About 328,143 fish have been stocked in Greenough Lake across 258 recorded events since 1933, per Montana fish & wildlife agency.
What size are the fish stocked in Greenough Lake?
Fish stocked in Greenough Lake average about 8.8 inches, based on the sizes the agency reported.