Hansen Reservoir Fish Stocking
Montana · 1953–2025 on record
According to Montana fish & wildlife agency, Hansen Reservoir was last stocked October 15, 2025 with Brown Trout. Hansen Reservoir has 101 stocking records on file, spanning 1953–2025, with about 324,501 fish stocked over that period.
When Hansen Reservoir is stocked
Hansen Reservoir is typically stocked in spring, most often in May — 40 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Hansen Reservoir, freshest activity first.
Upper Frog Pond
11 mi1 species · 102 records
Last stocked June 2026
Elks Country Club Pond
10 mi2 species · 78 records
Last stocked May 2026
Big Casino Creek Reservoir
11 mi4 species · 106 records
Last stocked August 2025
Hollands Reservoir
8 mi2 species · 30 records
Last stocked July 2013
Kovacich Pond
6 mi2 species · 24 records
Last stocked May 1991
Hansen Creek
6 mi3 species · 33 records
Last stocked May 1975
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| October 15, 2025 | Brown Trout | 500 | 6.85" | Montana fish & wildlife agency |
| June 19, 2025 | Brown Trout | 500 | 4.03" | Montana fish & wildlife agency |
| June 17, 2025 | Cutthroat Trout | 3,040 | 4.22" | Montana fish & wildlife agency |
| June 27, 2024 | Cutthroat Trout | 3,000 | 3.85" | Montana fish & wildlife agency |
| May 11, 2023 | Cutthroat Trout | 3,575 | 4.45" | Montana fish & wildlife agency |
| June 29, 2022 | Cutthroat Trout | 3,500 | 5.14" | Montana fish & wildlife agency |
| June 24, 2021 | Cutthroat Trout | 1,000 | 5.2" | Montana fish & wildlife agency |
| May 18, 2021 | Rainbow Trout | 1,499 | 4.62" | Montana fish & wildlife agency |
Show 42 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| May 13, 2021 | Rainbow Trout | 1,000 | 2.98" | Montana fish & wildlife agency |
| June 30, 2020 | Cutthroat Trout | 1,000 | 5.32" | Montana fish & wildlife agency |
| May 27, 2020 | Rainbow Trout | 1,000 | 3.04" | Montana fish & wildlife agency |
| May 6, 2020 | Rainbow Trout | 1,545 | 3.73" | Montana fish & wildlife agency |
| June 12, 2019 | Cutthroat Trout | 1,000 | 5.02" | Montana fish & wildlife agency |
| May 20, 2019 | Rainbow Trout | 1,504 | 4.32" | Montana fish & wildlife agency |
| May 16, 2019 | Rainbow Trout | 1,000 | 3.06" | Montana fish & wildlife agency |
| May 21, 2018 | Rainbow Trout | 5,999 | 4.31" | Montana fish & wildlife agency |
| May 21, 2018 | Rainbow Trout | 1,000 | 2.89" | Montana fish & wildlife agency |
| May 26, 2017 | Rainbow Trout | 999 | 3.47" | Montana fish & wildlife agency |
| May 16, 2017 | Rainbow Trout | 6,007 | 4.12" | Montana fish & wildlife agency |
| June 10, 2016 | Rainbow Trout | 1,003 | 3.51" | Montana fish & wildlife agency |
| April 29, 2016 | Rainbow Trout | 6,010 | 4.67" | Montana fish & wildlife agency |
| October 9, 2015 | Rainbow Trout | 96 | 7.5" | Montana fish & wildlife agency |
| May 1, 2015 | Rainbow Trout | 6,007 | 4.96" | Montana fish & wildlife agency |
| May 29, 2014 | Rainbow Trout | 5,998 | 4.12" | Montana fish & wildlife agency |
| May 22, 2013 | Rainbow Trout | 6,001 | 4.05" | Montana fish & wildlife agency |
| April 10, 2012 | Rainbow Trout | 6,000 | 3.24" | Montana fish & wildlife agency |
| June 6, 2011 | Rainbow Trout | 27 | 18.42" | Montana fish & wildlife agency |
| June 6, 2011 | Rainbow Trout | 6,173 | 4.43" | Montana fish & wildlife agency |
| June 7, 2010 | Rainbow Trout | 6,406 | 4.24" | Montana fish & wildlife agency |
| April 23, 2010 | Rainbow Trout | 30 | 17.04" | Montana fish & wildlife agency |
| May 12, 2009 | Rainbow Trout | 6,090 | 4" | Montana fish & wildlife agency |
| May 11, 2009 | Rainbow Trout | 30 | 18" | Montana fish & wildlife agency |
| April 14, 2009 | Rainbow Trout | 1,000 | 2" | Montana fish & wildlife agency |
| May 8, 2008 | Rainbow Trout | 5,988 | 3.91" | Montana fish & wildlife agency |
| May 7, 2008 | Rainbow Trout | 30 | 18.51" | Montana fish & wildlife agency |
| September 21, 2007 | Rainbow Trout | 475 | 7.63" | Montana fish & wildlife agency |
| June 4, 2007 | Rainbow Trout | 5,968 | 4.02" | Montana fish & wildlife agency |
| April 30, 2007 | Rainbow Trout | 20 | 14.49" | Montana fish & wildlife agency |
| May 26, 2006 | Rainbow Trout | 6,515 | 3.83" | Montana fish & wildlife agency |
| May 16, 2006 | Rainbow Trout | 33 | 19.71" | Montana fish & wildlife agency |
| September 29, 2005 | Rainbow Trout | 300 | 7.47" | Montana fish & wildlife agency |
| May 25, 2005 | Rainbow Trout | 5,958 | 3.53" | Montana fish & wildlife agency |
| June 16, 2004 | Rainbow Trout | 5,453 | 4.55" | Montana fish & wildlife agency |
| May 14, 2003 | Rainbow Trout | 22 | 22.31" | Montana fish & wildlife agency |
| May 14, 2003 | Rainbow Trout | 5,940 | 3.84" | Montana fish & wildlife agency |
| May 29, 2002 | Rainbow Trout | 6,035 | 4.1" | Montana fish & wildlife agency |
| November 19, 2001 | Rainbow Trout | 3,393 | 2.6" | Montana fish & wildlife agency |
| October 11, 2001 | Rainbow Trout | 35 | 21.9" | Montana fish & wildlife agency |
| July 11, 2001 | Rainbow Trout | 29 | 24" | Montana fish & wildlife agency |
| May 22, 2001 | Rainbow Trout | 6,062 | 3.8" | Montana fish & wildlife agency |
Showing 50 of 101 stocking records.
Frequently asked
When was Hansen Reservoir last stocked?
According to Montana fish & wildlife agency, Hansen Reservoir was last stocked October 15, 2025 with Brown Trout.
What fish species are stocked in Hansen Reservoir?
Hansen Reservoir is stocked with Brown Trout, Cutthroat Trout, Rainbow Trout, Smallmouth Bass, and Brook Trout.
What time of year is Hansen Reservoir stocked?
Hansen Reservoir is typically stocked in spring, most often in May.
How often is Hansen Reservoir stocked?
Hansen Reservoir has been stocked about 1 times a year — 101 recorded stockings between 1953 and 2025.
How many fish have been stocked in Hansen Reservoir?
About 324,501 fish have been stocked in Hansen Reservoir across 101 recorded events since 1953, per Montana fish & wildlife agency.
What size are the fish stocked in Hansen Reservoir?
Fish stocked in Hansen Reservoir average about 7.0 inches, based on the sizes the agency reported.