Ostle Reservoir - stocking report
Ostle Reservoir was last stocked on June 26, 2025: 1,200 Rainbow Trout (3.7 in avg).
Full stocking history
| Date | Species | Fish | Size | Hatchery |
|---|---|---|---|---|
| June 26, 2025 | Rainbow Trout | 1,200 | 3.7 in avg | Giant Springs Trout Hatchery |
| June 26, 2025 | Rainbow Trout | 1,000 | 6.0200000000000005 in avg | Giant Springs Trout Hatchery |
| June 27, 2024 | Rainbow Trout | 1,020 | 3.96 in avg | Big Springs Trout Hatchery |
| June 5, 2024 | Rainbow Trout | 1,000 | 3.3000000000000003 in avg | Giant Springs Trout Hatchery |
| June 5, 2024 | Rainbow Trout | 1,000 | 5.5 in avg | Giant Springs Trout Hatchery |
| June 27, 2023 | Rainbow Trout | 1,000 | 5.71 in avg | Giant Springs Trout Hatchery |
| June 27, 2023 | Rainbow Trout | 1,000 | 3.34 in avg | Giant Springs Trout Hatchery |
| June 14, 2023 | Rainbow Trout | 1,000 | 3.89 in avg | Big Springs Trout Hatchery |
| October 26, 2022 | Tiger Muskie (Northern X Muskie) | 20 | 8.44 in avg | Miles City Fish Hatchery |
| June 27, 2022 | Rainbow Trout | 930 | 3.79 in avg | Giant Springs Trout Hatchery |
| June 27, 2022 | Rainbow Trout | 1,000 | 6.140000000000001 in avg | Giant Springs Trout Hatchery |
| June 16, 2022 | Rainbow Trout | 1,016 | 3.4 in avg | Big Springs Trout Hatchery |
| June 16, 2021 | Rainbow Trout | 1,000 | 3.81 in avg | Big Springs Trout Hatchery |
| June 1, 2021 | Rainbow Trout | 1,000 | 2.97 in avg | Giant Springs Trout Hatchery |
| June 1, 2021 | Rainbow Trout | 1,000 | 5.04 in avg | Giant Springs Trout Hatchery |
| June 25, 2020 | Tiger Muskie (Northern X Muskie) | 20 | 10.450000000000001 in avg | Miles City Fish Hatchery |
| June 16, 2020 | Rainbow Trout | 1,010 | 4.41 in avg | Big Springs Trout Hatchery |
| June 16, 2020 | Rainbow Trout | 527 | 3.39 in avg | Big Springs Trout Hatchery |
| June 2, 2020 | Rainbow Trout | 1,000 | 2.97 in avg | Giant Springs Trout Hatchery |
| June 2, 2020 | Rainbow Trout | 1,000 | 3.52 in avg | Giant Springs Trout Hatchery |
| July 8, 2019 | Tiger Muskie (Northern X Muskie) | 20 | 4.89 in avg | Miles City Fish Hatchery |
| June 19, 2019 | Rainbow Trout | 1,000 | 3.75 in avg | Giant Springs Trout Hatchery |
| June 19, 2019 | Rainbow Trout | 1,000 | 4.53 in avg | Giant Springs Trout Hatchery |
| June 4, 2018 | Rainbow Trout | 1,022 | 4.42 in avg | Big Springs Trout Hatchery |
| June 4, 2018 | Rainbow Trout | 1,003 | 3.4 in avg | Big Springs Trout Hatchery |
| May 25, 2017 | Rainbow Trout | 1,015 | 4.19 in avg | Big Springs Trout Hatchery |
| May 25, 2017 | Rainbow Trout | 1,000 | 3.4 in avg | Big Springs Trout Hatchery |
| June 2, 2016 | Rainbow Trout | 967 | 4.42 in avg | Big Springs Trout Hatchery |
| June 2, 2016 | Rainbow Trout | 1,004 | 3.31 in avg | Big Springs Trout Hatchery |
| June 17, 2015 | Rainbow Trout | 1,008 | 4.19 in avg | Big Springs Trout Hatchery |
| May 28, 2015 | Rainbow Trout | 2,003 | 4.2700000000000005 in avg | Big Springs Trout Hatchery |
| October 9, 2014 | Rainbow Trout | 1,917 | 7.2 in avg | Big Springs Trout Hatchery |
| May 29, 2014 | Rainbow Trout | 2,005 | 4.12 in avg | Big Springs Trout Hatchery |
| September 20, 2013 | Rainbow Trout | 529 | 12.13 in avg | Big Springs Trout Hatchery |
| September 12, 2013 | Rainbow Trout | 1,989 | 9.200000000000001 in avg | Big Springs Trout Hatchery |
| June 18, 2013 | Rainbow Trout | 2,000 | 5.6000000000000005 in avg | Giant Springs Trout Hatchery |
| May 22, 2012 | Rainbow Trout | 2,000 | 4.8 in avg | Giant Springs Trout Hatchery |
| July 7, 2011 | Rainbow Trout | 2,000 | 4.7 in avg | Giant Springs Trout Hatchery |
| July 22, 2010 | Rainbow Trout | 1,000 | 9.9 in avg | Giant Springs Trout Hatchery |
| June 25, 2009 | Rainbow Trout | 2,000 | 6 in avg | Giant Springs Trout Hatchery |
| July 1, 2008 | Rainbow Trout | 2,000 | 5.1000000000000005 in avg | Giant Springs Trout Hatchery |
| June 6, 2006 | Rainbow Trout | 2,200 | 4.8 in avg | Giant Springs Trout Hatchery |
| May 24, 2005 | Rainbow Trout | 2,000 | 4.16 in avg | Giant Springs Trout Hatchery |
| June 25, 2004 | Rainbow Trout | 2,000 | 5 in avg | Giant Springs Trout Hatchery |
| June 16, 2003 | Rainbow Trout | 2,000 | 4.7 in avg | Giant Springs Trout Hatchery |
| May 30, 2002 | Rainbow Trout | 2,000 | 4.9 in avg | Giant Springs Trout Hatchery |
| June 22, 1999 | Rainbow Trout | 2,000 | 4.8 in avg | Giant Springs Trout Hatchery |
| May 28, 1998 | Rainbow Trout | 2,000 | 3.9 in avg | Giant Springs Trout Hatchery |
| June 23, 1997 | Rainbow Trout | 2,000 | 4.6000000000000005 in avg | Giant Springs Trout Hatchery |
| June 27, 1996 | Rainbow Trout | 2,000 | 4.2 in avg | Giant Springs Trout Hatchery |
| June 2, 1994 | Rainbow Trout | 2,000 | 4.8 in avg | Giant Springs Trout Hatchery |
| May 12, 1992 | Rainbow Trout | 2,009 | 4.7 in avg | Giant Springs Trout Hatchery |
| August 5, 1991 | Rainbow Trout | 2,100 | 5.2 in avg | Giant Springs Trout Hatchery |
| May 10, 1990 | Rainbow Trout | 2,000 | 3.9 in avg | Giant Springs Trout Hatchery |
| May 23, 1989 | Rainbow Trout | 2,001 | 5.1000000000000005 in avg | Giant Springs Trout Hatchery |
| June 17, 1986 | Rainbow Trout | 2,016 | 6 in avg | Giant Springs Trout Hatchery |
| June 1, 1984 | Rainbow Trout | 2,020 | 5 in avg | Giant Springs Trout Hatchery |
| June 1, 1983 | Rainbow Trout | 2,008 | 5 in avg | Giant Springs Trout Hatchery |
| September 20, 1967 | Rainbow Trout | 5,400 | 4 in avg | Giant Springs Trout Hatchery |
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: .