Rainbow Trout Stocked · 24 plants · last May 26, 2026 Best: dawn, dusk Grasshopper Reservoir fishing
Grasshopper Reservoir fishing has Rainbow Trout and Tiger Muskie on the stocking report. Also recorded: White Sucker and Fathead Minnow. It is stocked about 1.6 times a year since 2011, most often in May and September. Species guides list dawn and dusk as the active times.
- Last stocked
- May 26, 2026
- · Rainbow Trout
- Plants on record
- 26
- Since 2011
- Species stocked
- 2 (+2 also recorded)
- Average size
- 4 in
- Elevation
- 3,082.1 ft
Fish at Grasshopper Reservoir
Around the dates Grasshopper Reservoir is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 54.1°F in May, 60.7°F in September, 42°F in April, 63.1°F in June. That is air temperature at these coordinates, not water temperature. Open-Meteo
Rainbow Trout Stocked · 24 plants · last May 26, 2026 Best: dawn, dusk 
Tiger Muskie Stocked · 2 plants · last July 8, 2019 Last stocked July 8, 2019 · avg 4 in · 2 plants
Tiger Muskie species guide White Sucker Confirmed present
Fathead Minnow Confirmed present For fishing at Grasshopper Reservoir, annual plants of 4,000 Rainbow Trout occur in the spring, and 3,000 Rainbow Trout are stocked in the fall in alternate years. Furthermore, 500 Tiger Muskie fingerlings were stocked in 2019. (myfwp.mt.gov, accessed September 22, 2026)
Drafted by AI from the cited sources and checked before publishing.
How Grasshopper Reservoir is stocked
Faber Reservoir (12.5 mi) was stocked more recently. Faber Reservoir is also stocked with Rainbow Trout.
Fish stocked in 2011
5,498
Fish stocked in 2012
2,500
Fish stocked in 2013
5,680
Fish stocked in 2014
2,500
Fish stocked in 2015
5,601
Fish stocked in 2016
2,500
Fish stocked in 2017
5,764
Fish stocked in 2018
2,500
Fish stocked in 2019
4,017
Fish stocked in 2020
4,261
Fish stocked in 2021
7,060
Fish stocked in 2022
4,000
Fish stocked in 2023
7,319
Fish stocked in 2024
4,000
Fish stocked in 2025
6,597
Fish stocked in 2026
4,000
Stocking history
| Date | Species | Quantity | Avg. length | Source |
|---|---|---|---|---|
| May 26, 2026 | Rainbow Trout | 4,000 | 2.68 in | report |
| September 23, 2025 | Rainbow Trout | 2,597 | 7.3 in | report |
| April 30, 2025 | Rainbow Trout | 4,000 | 2.87 in | report |
| May 28, 2024 | Rainbow Trout | 4,000 | 3.23 in | report |
| September 13, 2023 | Rainbow Trout | 3,056 | 5.69 in | report |
| May 30, 2023 | Rainbow Trout | 4,263 | 2.74 in | report |
| May 25, 2022 | Rainbow Trout | 4,000 | 3.25 in | report |
| October 1, 2021 | Rainbow Trout | 3,060 | 7.19 in | report |
| June 1, 2021 | Rainbow Trout | 4,000 | 3.1 in | report |
| May 6, 2020 | Rainbow Trout | 4,261 | 3.08 in | report |
| September 23, 2019 | Rainbow Trout | 1,017 | 7.17 in | report |
| July 8, 2019 | Tiger Muskie | 500 | 4.93 in | report |
| May 13, 2019 | Rainbow Trout | 2,500 | 2.65 in | report |
| May 3, 2018 | Rainbow Trout | 2,500 | 2.47 in | report |
| October 11, 2017 | Rainbow Trout | 3,264 | 6.97 in | report |
| April 13, 2017 | Rainbow Trout | 2,500 | 2.02 in | report |
| April 7, 2016 | Rainbow Trout | 2,500 | 2.09 in | report |
| September 15, 2015 | Rainbow Trout | 3,101 | 6.73 in | report |
| April 16, 2015 | Rainbow Trout | 2,500 | 2.01 in | report |
| May 14, 2014 | Rainbow Trout | 2,500 | 2.45 in | report |
| September 13, 2013 | Rainbow Trout | 3,030 | 5.99 in | report |
| June 26, 2013 | Tiger Muskie | 150 | 3 in | report |
| June 19, 2013 | Rainbow Trout | 2,500 | 3.27 in | report |
| May 8, 2012 | Rainbow Trout | 2,500 | 2.72 in | report |
| October 4, 2011 | Rainbow Trout | 2,998 | 4.13 in | report |
| May 18, 2011 | Rainbow Trout | 2,500 | 3.09 in | report |
Access and facts
- Nearest town
- Chinook
Small (about 23-acre) reservoir south of Chinook: take Hwy 240 south 4.5 miles, then Lloyd Road about 7 miles.
Drafted by AI from the cited sources and checked before publishing.
Advisories, closures, regulations and water conditions change. Check the Montana Fish, Wildlife & Parks before you go.
Nearest lakes
Common questions
What fish are at Grasshopper Reservoir?
Fishing Grasshopper Reservoir usually means Rainbow Trout: Rainbow Trout accounts for 24 of 26 plants on record, ahead of Tiger Muskie. Rainbow Trout was last stocked May 26, 2026, averaging 4 in. Tiger Muskie was last stocked July 8, 2019, averaging 4 in. White Sucker and Fathead Minnow are recorded here outside the stocking reports.
When is Grasshopper Reservoir stocked?
Last stocked May 26, 2026. It is stocked about 1.6 times a year since 2011, most often in May and September.
How big are the fish stocked at Grasshopper Reservoir?
Stocked fish average 4 in. Rainbow Trout average 4 in. Tiger Muskie average 4 in.
How do you get on Grasshopper Reservoir?
The nearest town is Chinook. Small (about 23-acre) reservoir south of Chinook: take Hwy 240 south 4.5 miles, then Lloyd Road about 7 miles.
Which lakes near Grasshopper Reservoir were stocked more recently?
Faber Reservoir (12.5 mi) was stocked more recently. Faber Reservoir is also stocked with Rainbow Trout.