Grasshopper Reservoir Fish Stocking
Montana · 1947–2025 on record
According to Montana fish & wildlife agency, Grasshopper Reservoir was last stocked September 23, 2025 with Rainbow Trout. Grasshopper Reservoir has 87 stocking records on file, spanning 1947–2025, with about 362,893 fish stocked over that period.
When Grasshopper Reservoir is stocked
Grasshopper Reservoir is typically stocked in spring, most often in April — 25 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Grasshopper Reservoir, freshest activity first.
Faber Reservoir
13 mi3 species · 78 records
Last stocked November 2025
Ross Reservoir
11 mi3 species · 71 records
Last stocked September 2025
H.C. Kuhr Reservoir
4 mi6 species · 74 records
Last stocked April 2025
Harrys Pond
13 mi1 species · 1 records
Last stocked May 2024
Ramberg Reservoir
8 mi1 species · 1 records
Last stocked July 1994
Lyons Reservoir
8 mi6 species · 20 records
Last stocked April 1993
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| September 23, 2025 | Rainbow Trout | 2,597 | 7.3" | Montana fish & wildlife agency |
| April 30, 2025 | Rainbow Trout | 4,000 | 2.87" | Montana fish & wildlife agency |
| May 28, 2024 | Rainbow Trout | 4,000 | 3.23" | Montana fish & wildlife agency |
| September 13, 2023 | Rainbow Trout | 3,056 | 5.69" | Montana fish & wildlife agency |
| May 30, 2023 | Rainbow Trout | 4,263 | 2.74" | Montana fish & wildlife agency |
| May 25, 2022 | Rainbow Trout | 4,000 | 3.25" | Montana fish & wildlife agency |
| October 1, 2021 | Rainbow Trout | 3,060 | 7.19" | Montana fish & wildlife agency |
| June 1, 2021 | Rainbow Trout | 4,000 | 3.1" | Montana fish & wildlife agency |
Show 42 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| May 6, 2020 | Rainbow Trout | 4,261 | 3.08" | Montana fish & wildlife agency |
| September 23, 2019 | Rainbow Trout | 1,017 | 7.17" | Montana fish & wildlife agency |
| July 8, 2019 | Tiger Trout | 500 | 4.93" | Montana fish & wildlife agency |
| May 13, 2019 | Rainbow Trout | 2,500 | 2.65" | Montana fish & wildlife agency |
| May 3, 2018 | Rainbow Trout | 2,500 | 2.47" | Montana fish & wildlife agency |
| October 11, 2017 | Rainbow Trout | 3,264 | 6.97" | Montana fish & wildlife agency |
| April 13, 2017 | Rainbow Trout | 2,500 | 2.02" | Montana fish & wildlife agency |
| April 7, 2016 | Rainbow Trout | 2,500 | 2.09" | Montana fish & wildlife agency |
| September 15, 2015 | Rainbow Trout | 3,101 | 6.73" | Montana fish & wildlife agency |
| April 16, 2015 | Rainbow Trout | 2,500 | 2.01" | Montana fish & wildlife agency |
| May 14, 2014 | Rainbow Trout | 2,500 | 2.45" | Montana fish & wildlife agency |
| September 13, 2013 | Rainbow Trout | 3,030 | 5.99" | Montana fish & wildlife agency |
| June 26, 2013 | Tiger Trout | 150 | 3" | Montana fish & wildlife agency |
| June 19, 2013 | Rainbow Trout | 2,500 | 3.27" | Montana fish & wildlife agency |
| May 8, 2012 | Rainbow Trout | 2,500 | 2.72" | Montana fish & wildlife agency |
| October 4, 2011 | Rainbow Trout | 2,998 | 4.13" | Montana fish & wildlife agency |
| May 18, 2011 | Rainbow Trout | 2,500 | 3.09" | Montana fish & wildlife agency |
| July 8, 2010 | Rainbow Trout | 1 | 5.9" | Montana fish & wildlife agency |
| June 15, 2010 | Rainbow Trout | 1,923 | 4.45" | Montana fish & wildlife agency |
| September 25, 2009 | Rainbow Trout | 2,996 | 4" | Montana fish & wildlife agency |
| April 21, 2009 | Rainbow Trout | 2,500 | 4" | Montana fish & wildlife agency |
| May 1, 2008 | Rainbow Trout | 2,500 | 3.2" | Montana fish & wildlife agency |
| September 14, 2007 | Rainbow Trout | 294 | 4.54" | Montana fish & wildlife agency |
| September 14, 2007 | Rainbow Trout | 5,719 | 3.57" | Montana fish & wildlife agency |
| April 24, 2007 | Rainbow Trout | 2,500 | 3.4" | Montana fish & wildlife agency |
| May 4, 2006 | Rainbow Trout | 3,000 | 3.22" | Montana fish & wildlife agency |
| April 20, 2006 | Rainbow Trout | 2,500 | 3.4" | Montana fish & wildlife agency |
| September 15, 2005 | Rainbow Trout | 3,255 | 5.12" | Montana fish & wildlife agency |
| April 13, 2005 | Rainbow Trout | 2,500 | 3.57" | Montana fish & wildlife agency |
| April 14, 2004 | Rainbow Trout | 2,000 | 3.5" | Montana fish & wildlife agency |
| September 24, 2003 | Rainbow Trout | 1,610 | 3.79" | Montana fish & wildlife agency |
| September 24, 2003 | Rainbow Trout | 1,500 | 4.37" | Montana fish & wildlife agency |
| May 22, 2003 | Rainbow Trout | 2,500 | 4.3" | Montana fish & wildlife agency |
| April 30, 2002 | Rainbow Trout | 1,000 | 4.2" | Montana fish & wildlife agency |
| May 1, 2001 | Rainbow Trout | 2,375 | 3.7" | Montana fish & wildlife agency |
| April 18, 2000 | Rainbow Trout | 2,000 | 3.5" | Montana fish & wildlife agency |
| April 20, 1999 | Rainbow Trout | 2,500 | 3.3" | Montana fish & wildlife agency |
| April 21, 1998 | Rainbow Trout | 4,500 | 3.4" | Montana fish & wildlife agency |
| April 14, 1998 | Rainbow Trout | 10,076 | 2.3" | Montana fish & wildlife agency |
| September 15, 1997 | Rainbow Trout | 4,403 | 4.7" | Montana fish & wildlife agency |
| April 17, 1997 | Rainbow Trout | 3,000 | 3.1" | Montana fish & wildlife agency |
| April 25, 1996 | Rainbow Trout | 3,915 | 6.5" | Montana fish & wildlife agency |
Showing 50 of 87 stocking records.
Frequently asked
When was Grasshopper Reservoir last stocked?
According to Montana fish & wildlife agency, Grasshopper Reservoir was last stocked September 23, 2025 with Rainbow Trout.
What fish species are stocked in Grasshopper Reservoir?
Grasshopper Reservoir is stocked with Rainbow Trout, Tiger Trout, and Largemouth Bass.
What time of year is Grasshopper Reservoir stocked?
Grasshopper Reservoir is typically stocked in spring, most often in April.
How often is Grasshopper Reservoir stocked?
Grasshopper Reservoir is stocked intermittently — 87 recorded stockings between 1947 and 2025.
How many fish have been stocked in Grasshopper Reservoir?
About 362,893 fish have been stocked in Grasshopper Reservoir across 87 recorded events since 1947, per Montana fish & wildlife agency.
What size are the fish stocked in Grasshopper Reservoir?
Fish stocked in Grasshopper Reservoir average about 4.0 inches, based on the sizes the agency reported.