Grasshopper Reservoir - stocking report
Grasshopper Reservoir was last stocked on September 23, 2025: 2,597 Rainbow Trout (7.3 in avg).
Full stocking history
| Date | Species | Fish | Size |
|---|---|---|---|
| September 23, 2025 | Rainbow Trout | 2,597 | 7.3 in avg |
| April 30, 2025 | Rainbow Trout | 4,000 | 2.87 in avg |
| May 28, 2024 | Rainbow Trout | 4,000 | 3.23 in avg |
| September 13, 2023 | Rainbow Trout | 3,056 | 5.69 in avg |
| May 30, 2023 | Rainbow Trout | 4,263 | 2.74 in avg |
| May 25, 2022 | Rainbow Trout | 4,000 | 3.25 in avg |
| October 1, 2021 | Rainbow Trout | 3,060 | 7.19 in avg |
| June 1, 2021 | Rainbow Trout | 4,000 | 3.1 in avg |
| May 6, 2020 | Rainbow Trout | 4,261 | 3.08 in avg |
| September 23, 2019 | Rainbow Trout | 1,017 | 7.17 in avg |
| July 8, 2019 | Tiger Muskie (Northern X Muskie) | 500 | 4.93 in avg |
| May 13, 2019 | Rainbow Trout | 2,500 | 2.65 in avg |
| May 3, 2018 | Rainbow Trout | 2,500 | 2.47 in avg |
| October 11, 2017 | Rainbow Trout | 3,264 | 6.97 in avg |
| April 13, 2017 | Rainbow Trout | 2,500 | 2.02 in avg |
| April 7, 2016 | Rainbow Trout | 2,500 | 2.09 in avg |
| September 15, 2015 | Rainbow Trout | 3,101 | 6.73 in avg |
| April 16, 2015 | Rainbow Trout | 2,500 | 2.0100000000000002 in avg |
| May 14, 2014 | Rainbow Trout | 2,500 | 2.45 in avg |
| September 13, 2013 | Rainbow Trout | 3,030 | 5.99 in avg |
| June 26, 2013 | Tiger Muskie (Northern X Muskie) | 150 | 3 in avg |
| June 19, 2013 | Rainbow Trout | 2,500 | 3.27 in avg |
| May 8, 2012 | Rainbow Trout | 2,500 | 2.72 in avg |
| October 4, 2011 | Rainbow Trout | 2,998 | 4.13 in avg |
| May 18, 2011 | Rainbow Trout | 2,500 | 3.09 in avg |
| July 8, 2010 | Rainbow Trout | 1 | 5.9 in avg |
| June 15, 2010 | Rainbow Trout | 1,923 | 4.45 in avg |
| September 25, 2009 | Rainbow Trout | 2,996 | 4 in avg |
| April 21, 2009 | Rainbow Trout | 2,500 | 4 in avg |
| May 1, 2008 | Rainbow Trout | 2,500 | 3.2 in avg |
| September 14, 2007 | Rainbow Trout | 5,719 | 3.5700000000000003 in avg |
| September 14, 2007 | Rainbow Trout | 294 | 4.54 in avg |
| April 24, 2007 | Rainbow Trout | 2,500 | 3.4 in avg |
| May 4, 2006 | Rainbow Trout | 3,000 | 3.22 in avg |
| April 20, 2006 | Rainbow Trout | 2,500 | 3.4 in avg |
| September 15, 2005 | Rainbow Trout | 3,255 | 5.12 in avg |
| April 13, 2005 | Rainbow Trout | 2,500 | 3.5700000000000003 in avg |
| April 14, 2004 | Rainbow Trout | 2,000 | 3.5 in avg |
| September 24, 2003 | Rainbow Trout | 1,500 | 4.37 in avg |
| September 24, 2003 | Rainbow Trout | 1,610 | 3.79 in avg |
| May 22, 2003 | Rainbow Trout | 2,500 | 4.3 in avg |
| April 30, 2002 | Rainbow Trout | 1,000 | 4.2 in avg |
| May 1, 2001 | Rainbow Trout | 2,375 | 3.7 in avg |
| April 18, 2000 | Rainbow Trout | 2,000 | 3.5 in avg |
| April 20, 1999 | Rainbow Trout | 2,500 | 3.3000000000000003 in avg |
| April 21, 1998 | Rainbow Trout | 4,500 | 3.4 in avg |
| April 14, 1998 | Rainbow Trout | 10,076 | 2.3000000000000003 in avg |
| September 15, 1997 | Rainbow Trout | 4,403 | 4.7 in avg |
| April 17, 1997 | Rainbow Trout | 3,000 | 3.1 in avg |
| April 25, 1996 | Rainbow Trout | 3,915 | 6.5 in avg |
| April 17, 1996 | Rainbow Trout | 5,001 | 3.2 in avg |
| April 20, 1995 | Rainbow Trout | 2,500 | 3.3000000000000003 in avg |
| April 14, 1994 | Rainbow Trout | 5,000 | 3.1 in avg |
| September 3, 1993 | Rainbow Trout | 3,063 | 5.1000000000000005 in avg |
| May 29, 1992 | Rainbow Trout | 2,500 | 6.7 in avg |
| April 9, 1992 | Rainbow Trout | 5,000 | 2.9 in avg |
| April 18, 1990 | Rainbow Trout | 5,244 | 3.5 in avg |
| September 26, 1989 | Rainbow Trout | 2,009 | 4.8 in avg |
| June 14, 1988 | Largemouth Bass | 20,000 | 0.5 in avg |
| April 15, 1988 | Rainbow Trout | 5,002 | 3.7 in avg |
| September 14, 1987 | Rainbow Trout | 4,984 | 5.1000000000000005 in avg |
| June 11, 1987 | Largemouth Bass | 20,000 | 0.5 in avg |
| September 9, 1986 | Rainbow Trout | 6,538 | 5 in avg |
| July 29, 1986 | Largemouth Bass | 1,800 | 2 in avg |
| June 28, 1985 | Rainbow Trout | 2,500 | 4 in avg |
| April 18, 1985 | Rainbow Trout | 2,500 | 4 in avg |
| May 9, 1984 | Rainbow Trout | 6,009 | 4 in avg |
| June 7, 1983 | Rainbow Trout | 6,021 | 4 in avg |
| July 23, 1982 | Rainbow Trout | 6,002 | 5 in avg |
| June 10, 1981 | Rainbow Trout | 6,000 | 5 in avg |
| May 22, 1980 | Rainbow Trout | 8,052 | 3 in avg |
| June 19, 1979 | Rainbow Trout | 8,323 | 5 in avg |
| June 15, 1978 | Rainbow Trout | 7,105 | 4 in avg |
| May 31, 1977 | Rainbow Trout | 6,500 | 5 in avg |
| May 11, 1976 | Rainbow Trout | 6,160 | 6 in avg |
| June 10, 1975 | Rainbow Trout | 6,150 | 4 in avg |
| July 26, 1974 | Rainbow Trout | 6,240 | 8 in avg |
| June 13, 1972 | Rainbow Trout | 6,240 | 5 in avg |
| May 27, 1971 | Rainbow Trout | 6,500 | 5 in avg |
| June 3, 1970 | Rainbow Trout | 5,600 | 3 in avg |
| May 27, 1969 | Rainbow Trout | 5,980 | 3 in avg |
| April 16, 1968 | Rainbow Trout | 5,950 | 3 in avg |
| May 24, 1967 | Rainbow Trout | 6,000 | 4 in avg |
| April 12, 1966 | Rainbow Trout | 6,000 | 4 in avg |
| June 7, 1965 | Rainbow Trout | 6,006 | 4 in avg |
| September 8, 1964 | Rainbow Trout | 6,550 | 5 in avg |
| September 10, 1947 | Rainbow Trout | 1,000 | 2 in avg |
Records shown exactly as published by Montana Fish, Wildlife & Parks. An event missing here does not mean the water was not stocked - some plants go unreported or are published elsewhere.
Data source: Montana Fish, Wildlife & Parks. Last updated: .