Coopers Lake Fish Stocking
Montana · 1936–2025 on record
According to Montana fish & wildlife agency, Coopers Lake was last stocked October 1, 2025 with Cutthroat Trout. Coopers Lake has 104 stocking records on file, spanning 1936–2025, with about 763,090 fish stocked over that period.
When Coopers Lake is stocked
Coopers Lake is typically stocked in summer, most often in June — 50 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Coopers Lake, freshest activity first.
Browns Lake
10 mi5 species · 286 records
Last stocked June 2026
Penny Lake
0 mi2 species · 8 records
Last stocked October 2025
Hidden Lake
3 mi4 species · 103 records
Last stocked June 2025
Maddie Lake
4 mi2 species · 5 records
Last stocked June 2025
Kleinschmidt Creek
8 mi1 species · 1 records
Last stocked May 1990
Unnamed Lake (powell Co)
1 mi1 species · 2 records
Last stocked June 1984
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| October 1, 2025 | Cutthroat Trout | 4,000 | 5.7" | Montana fish & wildlife agency |
| October 2, 2024 | Cutthroat Trout | 3,600 | 5.23" | Montana fish & wildlife agency |
| June 13, 2023 | Cutthroat Trout | 4,000 | 5.46" | Montana fish & wildlife agency |
| June 2, 2022 | Cutthroat Trout | 4,000 | 5.54" | Montana fish & wildlife agency |
| May 5, 2021 | Cutthroat Trout | 5,226 | 4.99" | Montana fish & wildlife agency |
| May 22, 2020 | Cutthroat Trout | 4,000 | 4.67" | Montana fish & wildlife agency |
| June 26, 2019 | Cutthroat Trout | 4,000 | 5.6" | Montana fish & wildlife agency |
| June 4, 2018 | Cutthroat Trout | 4,000 | 4.84" | Montana fish & wildlife agency |
Show 42 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| June 8, 2017 | Cutthroat Trout | 4,000 | 5.23" | Montana fish & wildlife agency |
| June 2, 2016 | Cutthroat Trout | 4,000 | 4.92" | Montana fish & wildlife agency |
| June 9, 2015 | Cutthroat Trout | 4,000 | 4.3" | Montana fish & wildlife agency |
| June 16, 2014 | Cutthroat Trout | 4,000 | 4.63" | Montana fish & wildlife agency |
| June 11, 2013 | Cutthroat Trout | 4,000 | 5.43" | Montana fish & wildlife agency |
| June 19, 2012 | Cutthroat Trout | 3,600 | 5.9" | Montana fish & wildlife agency |
| June 28, 2011 | Cutthroat Trout | 4,000 | 5" | Montana fish & wildlife agency |
| June 23, 2010 | Cutthroat Trout | 4,000 | 6" | Montana fish & wildlife agency |
| June 2, 2009 | Cutthroat Trout | 3,600 | 5" | Montana fish & wildlife agency |
| September 9, 2008 | Cutthroat Trout | 4,000 | 2.11" | Montana fish & wildlife agency |
| June 24, 2008 | Cutthroat Trout | 300 | 14" | Montana fish & wildlife agency |
| June 11, 2007 | Cutthroat Trout | 4,000 | 5.34" | Montana fish & wildlife agency |
| June 14, 2006 | Cutthroat Trout | 3,600 | 5.59" | Montana fish & wildlife agency |
| June 7, 2005 | Cutthroat Trout | 4,000 | 5.3" | Montana fish & wildlife agency |
| June 11, 2004 | Cutthroat Trout | 4,000 | 5.76" | Montana fish & wildlife agency |
| June 24, 2003 | Cutthroat Trout | 250 | 15.8" | Montana fish & wildlife agency |
| June 17, 2003 | Cutthroat Trout | 4,000 | 5.3" | Montana fish & wildlife agency |
| May 31, 2000 | Cutthroat Trout | 10,000 | 3.7" | Montana fish & wildlife agency |
| June 7, 1999 | Cutthroat Trout | 10,000 | 3.2" | Montana fish & wildlife agency |
| June 6, 1998 | Cutthroat Trout | 10,000 | 3.8" | Montana fish & wildlife agency |
| June 11, 1997 | Cutthroat Trout | 10,010 | 3" | Montana fish & wildlife agency |
| July 1, 1996 | Cutthroat Trout | 10,000 | 4" | Montana fish & wildlife agency |
| April 20, 1995 | Cutthroat Trout | 9,956 | 3.6" | Montana fish & wildlife agency |
| June 2, 1994 | Cutthroat Trout | 7,462 | 3.2" | Montana fish & wildlife agency |
| June 28, 1993 | Cutthroat Trout | 10,000 | 3.1" | Montana fish & wildlife agency |
| June 5, 1992 | Cutthroat Trout | 10,020 | 3.5" | Montana fish & wildlife agency |
| June 6, 1991 | Cutthroat Trout | 9,460 | 4.1" | Montana fish & wildlife agency |
| August 1, 1990 | Cutthroat Trout | 10,030 | 4.1" | Montana fish & wildlife agency |
| July 13, 1989 | Cutthroat Trout | 10,019 | 3.9" | Montana fish & wildlife agency |
| July 7, 1988 | Cutthroat Trout | 10,004 | 4.2" | Montana fish & wildlife agency |
| June 11, 1987 | Cutthroat Trout | 10,030 | 3.5" | Montana fish & wildlife agency |
| July 9, 1986 | Cutthroat Trout | 9,765 | 3" | Montana fish & wildlife agency |
| June 10, 1985 | Cutthroat Trout | 9,720 | 5" | Montana fish & wildlife agency |
| June 13, 1984 | Cutthroat Trout | 10,000 | 4" | Montana fish & wildlife agency |
| June 29, 1983 | Cutthroat Trout | 10,302 | 4" | Montana fish & wildlife agency |
| June 21, 1982 | Cutthroat Trout | 10,258 | 5" | Montana fish & wildlife agency |
| May 19, 1981 | Cutthroat Trout | 10,005 | 4" | Montana fish & wildlife agency |
| May 30, 1980 | Cutthroat Trout | 10,011 | 4" | Montana fish & wildlife agency |
| May 30, 1979 | Cutthroat Trout | 10,500 | 4" | Montana fish & wildlife agency |
| May 12, 1978 | Cutthroat Trout | 9,975 | 4" | Montana fish & wildlife agency |
| June 2, 1977 | Cutthroat Trout | 9,960 | 5" | Montana fish & wildlife agency |
| May 19, 1976 | Cutthroat Trout | 10,005 | 4" | Montana fish & wildlife agency |
Showing 50 of 104 stocking records.
Frequently asked
When was Coopers Lake last stocked?
According to Montana fish & wildlife agency, Coopers Lake was last stocked October 1, 2025 with Cutthroat Trout.
What fish species are stocked in Coopers Lake?
Coopers Lake is stocked with Cutthroat Trout and Rainbow Trout.
What time of year is Coopers Lake stocked?
Coopers Lake is typically stocked in summer, most often in June.
How often is Coopers Lake stocked?
Coopers Lake is stocked intermittently — 104 recorded stockings between 1936 and 2025.
How many fish have been stocked in Coopers Lake?
About 763,090 fish have been stocked in Coopers Lake across 104 recorded events since 1936, per Montana fish & wildlife agency.
What size are the fish stocked in Coopers Lake?
Fish stocked in Coopers Lake average about 4.9 inches, based on the sizes the agency reported.