Ostle Reservoir Fish Stocking
Montana · 1967–2025 on record
According to Montana fish & wildlife agency, Ostle Reservoir was last stocked June 26, 2025 with Rainbow Trout. Ostle Reservoir has 59 stocking records on file, spanning 1967–2025, with about 85,979 fish stocked over that period.
When Ostle Reservoir is stocked
Ostle Reservoir is typically stocked in summer, most often in June — 38 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Ostle Reservoir, freshest activity first.
Perkins Pond
11 mi1 species · 21 records
Last stocked June 2025
Bynum Reservoir
9 mi8 species · 167 records
Last stocked June 2024
Hope Lake
10 mi5 species · 26 records
Last stocked April 2008
Green Lake
11 mi3 species · 13 records
Last stocked May 2007
Long Lake
10 mi6 species · 29 records
Last stocked May 1995
South Fork Teton River
6 mi2 species · 19 records
Last stocked July 1963
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| June 26, 2025 | Rainbow Trout | 1,200 | 3.7" | Montana fish & wildlife agency |
| June 26, 2025 | Rainbow Trout | 1,000 | 6.02" | Montana fish & wildlife agency |
| June 27, 2024 | Rainbow Trout | 1,020 | 3.96" | Montana fish & wildlife agency |
| June 5, 2024 | Rainbow Trout | 1,000 | 5.5" | Montana fish & wildlife agency |
| June 5, 2024 | Rainbow Trout | 1,000 | 3.3" | Montana fish & wildlife agency |
| June 27, 2023 | Rainbow Trout | 1,000 | 3.34" | Montana fish & wildlife agency |
| June 27, 2023 | Rainbow Trout | 1,000 | 5.71" | Montana fish & wildlife agency |
| June 14, 2023 | Rainbow Trout | 1,000 | 3.89" | Montana fish & wildlife agency |
Show 42 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| October 26, 2022 | Tiger Trout | 20 | 8.44" | Montana fish & wildlife agency |
| June 27, 2022 | Rainbow Trout | 1,000 | 6.14" | Montana fish & wildlife agency |
| June 27, 2022 | Rainbow Trout | 930 | 3.79" | Montana fish & wildlife agency |
| June 16, 2022 | Rainbow Trout | 1,016 | 3.4" | Montana fish & wildlife agency |
| June 16, 2021 | Rainbow Trout | 1,000 | 3.81" | Montana fish & wildlife agency |
| June 1, 2021 | Rainbow Trout | 1,000 | 5.04" | Montana fish & wildlife agency |
| June 1, 2021 | Rainbow Trout | 1,000 | 2.97" | Montana fish & wildlife agency |
| June 25, 2020 | Tiger Trout | 20 | 10.45" | Montana fish & wildlife agency |
| June 16, 2020 | Rainbow Trout | 1,010 | 4.41" | Montana fish & wildlife agency |
| June 16, 2020 | Rainbow Trout | 527 | 3.39" | Montana fish & wildlife agency |
| June 2, 2020 | Rainbow Trout | 1,000 | 3.52" | Montana fish & wildlife agency |
| June 2, 2020 | Rainbow Trout | 1,000 | 2.97" | Montana fish & wildlife agency |
| July 8, 2019 | Tiger Trout | 20 | 4.89" | Montana fish & wildlife agency |
| June 19, 2019 | Rainbow Trout | 1,000 | 4.53" | Montana fish & wildlife agency |
| June 19, 2019 | Rainbow Trout | 1,000 | 3.75" | Montana fish & wildlife agency |
| June 4, 2018 | Rainbow Trout | 1,022 | 4.42" | Montana fish & wildlife agency |
| June 4, 2018 | Rainbow Trout | 1,003 | 3.4" | Montana fish & wildlife agency |
| May 25, 2017 | Rainbow Trout | 1,015 | 4.19" | Montana fish & wildlife agency |
| May 25, 2017 | Rainbow Trout | 1,000 | 3.4" | Montana fish & wildlife agency |
| June 2, 2016 | Rainbow Trout | 1,004 | 3.31" | Montana fish & wildlife agency |
| June 2, 2016 | Rainbow Trout | 967 | 4.42" | Montana fish & wildlife agency |
| June 17, 2015 | Rainbow Trout | 1,008 | 4.19" | Montana fish & wildlife agency |
| May 28, 2015 | Rainbow Trout | 2,003 | 4.27" | Montana fish & wildlife agency |
| October 9, 2014 | Rainbow Trout | 1,917 | 7.2" | Montana fish & wildlife agency |
| May 29, 2014 | Rainbow Trout | 2,005 | 4.12" | Montana fish & wildlife agency |
| September 20, 2013 | Rainbow Trout | 529 | 12.13" | Montana fish & wildlife agency |
| September 12, 2013 | Rainbow Trout | 1,989 | 9.2" | Montana fish & wildlife agency |
| June 18, 2013 | Rainbow Trout | 2,000 | 5.6" | Montana fish & wildlife agency |
| May 22, 2012 | Rainbow Trout | 2,000 | 4.8" | Montana fish & wildlife agency |
| July 7, 2011 | Rainbow Trout | 2,000 | 4.7" | Montana fish & wildlife agency |
| July 22, 2010 | Rainbow Trout | 1,000 | 9.9" | Montana fish & wildlife agency |
| June 25, 2009 | Rainbow Trout | 2,000 | 6" | Montana fish & wildlife agency |
| July 1, 2008 | Rainbow Trout | 2,000 | 5.1" | Montana fish & wildlife agency |
| June 6, 2006 | Rainbow Trout | 2,200 | 4.8" | Montana fish & wildlife agency |
| May 24, 2005 | Rainbow Trout | 2,000 | 4.16" | Montana fish & wildlife agency |
| June 25, 2004 | Rainbow Trout | 2,000 | 5" | Montana fish & wildlife agency |
| June 16, 2003 | Rainbow Trout | 2,000 | 4.7" | Montana fish & wildlife agency |
| May 30, 2002 | Rainbow Trout | 2,000 | 4.9" | Montana fish & wildlife agency |
| June 22, 1999 | Rainbow Trout | 2,000 | 4.8" | Montana fish & wildlife agency |
| May 28, 1998 | Rainbow Trout | 2,000 | 3.9" | Montana fish & wildlife agency |
| June 23, 1997 | Rainbow Trout | 2,000 | 4.6" | Montana fish & wildlife agency |
| June 27, 1996 | Rainbow Trout | 2,000 | 4.2" | Montana fish & wildlife agency |
Showing 50 of 59 stocking records.
Frequently asked
When was Ostle Reservoir last stocked?
According to Montana fish & wildlife agency, Ostle Reservoir was last stocked June 26, 2025 with Rainbow Trout.
What fish species are stocked in Ostle Reservoir?
Ostle Reservoir is stocked with Rainbow Trout and Tiger Trout.
What time of year is Ostle Reservoir stocked?
Ostle Reservoir is typically stocked in summer, most often in June.
How often is Ostle Reservoir stocked?
Ostle Reservoir is stocked intermittently — 59 recorded stockings between 1967 and 2025.
How many fish have been stocked in Ostle Reservoir?
About 85,979 fish have been stocked in Ostle Reservoir across 59 recorded events since 1967, per Montana fish & wildlife agency.
What size are the fish stocked in Ostle Reservoir?
Fish stocked in Ostle Reservoir average about 4.9 inches, based on the sizes the agency reported.