Rainbow Trout Stocked · 13 plants · last September 27, 2023 Best: dawn, dusk Last stocked September 27, 2023 · avg 4.4 in · 13 plants
Best: dawn, dusk
Rainbow Trout species guideRock Lake fishing
Rock Lake fishing: not stocked since September 27, 2023. It was stocked with Rainbow Trout and Cutthroat Trout. Species guides list dawn and dusk as the active times.
- Last stocked
- September 27, 2023
- · Rainbow Trout
- Plants on record
- 15
- Since 2011
- Species recorded
- 2
- Average size
- 4.2 in
- Elevation
- 3,194.2 ft
Fish at Rock Lake
Around the dates Rock Lake is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 56.4°F in September, 66.5°F in July, 51.2°F in May, 58.6°F in June. That is air temperature at these coordinates, not water temperature. Open-Meteo
Rainbow Trout Stocked · 13 plants · last September 27, 2023 Best: dawn, dusk 
Cutthroat Trout Stocked · 2 plants · last July 30, 2019 Last stocked July 30, 2019 · avg 2.8 in · 2 plants
Cutthroat Trout species guideHow Rock Lake is stocked
Murray Lake (4.8 mi), Smith Lake (5.9 mi), and Dollar Lake (6.2 mi) were stocked more recently. Murray Lake is also stocked with Rainbow Trout and Cutthroat Trout, Smith Lake is also stocked with Rainbow Trout and Cutthroat Trout, and Dollar Lake is also stocked with Rainbow Trout and Cutthroat Trout.
Fish stocked in 2011
1,104
Fish stocked in 2012
1,047
Fish stocked in 2013
2,200
Fish stocked in 2014
1,000
Fish stocked in 2015
1,100
Fish stocked in 2016
1,097
Fish stocked in 2017
1,001
Fish stocked in 2018
1,001
Fish stocked in 2019
3,350
Fish stocked in 2020
1,100
Fish stocked in 2021
1,102
Fish stocked in 2022
1,245
Fish stocked in 2023
1,105
Stocking history
| Date | Species | Quantity | Avg. length | Source |
|---|---|---|---|---|
| September 27, 2023 | Rainbow Trout | 1,105 | 4.43 in | report |
| September 15, 2022 | Rainbow Trout | 1,245 | 4.22 in | report |
| September 20, 2021 | Rainbow Trout | 1,102 | 3.91 in | report |
| September 24, 2020 | Rainbow Trout | 1,060 | 4.06 in | report |
| September 24, 2020 | Rainbow Trout | 40 | 4.21 in | report |
| September 30, 2019 | Rainbow Trout | 1,100 | 4.24 in | report |
| July 30, 2019 | Cutthroat Trout | 2,250 | 2.7 in | report |
| September 20, 2018 | Rainbow Trout | 1,001 | 4.17 in | report |
| September 27, 2017 | Rainbow Trout | 1,001 | 4.33 in | report |
| September 23, 2016 | Rainbow Trout | 1,097 | 4.26 in | report |
| September 8, 2015 | Rainbow Trout | 1,100 | 3.21 in | report |
| November 12, 2014 | Rainbow Trout | 1,000 | 3.93 in | report |
| July 29, 2013 | Cutthroat Trout | 2,200 | 2.8 in | report |
| June 22, 2012 | Rainbow Trout | 1,047 | 9.04 in | report |
| May 19, 2011 | Rainbow Trout | 1,104 | 2.79 in | report |
Access and facts
Advisories, closures, regulations and water conditions change. Check the Montana Fish, Wildlife & Parks before you go.
Nearest lakes
Public land at Rock Lake
Rock Lake is inside Flathead National Forest.
Boundaries from Public Lands DB, part of the same network.
Common questions
What fish are at Rock Lake?
Fishing Rock Lake usually means Rainbow Trout: Rainbow Trout accounts for 13 of 15 plants on record, ahead of Cutthroat Trout. Rainbow Trout was last stocked September 27, 2023, averaging 4.4 in. Cutthroat Trout was last stocked July 30, 2019, averaging 2.8 in.
When is Rock Lake stocked?
Not stocked since September 27, 2023.
How big are the fish stocked at Rock Lake?
Stocked fish average 4.2 in. Rainbow Trout average 4.4 in. Cutthroat Trout average 2.8 in.
Which lakes near Rock Lake were stocked more recently?
Murray Lake (4.8 mi), Smith Lake (5.9 mi), and Dollar Lake (6.2 mi) were stocked more recently. Murray Lake is also stocked with Rainbow Trout and Cutthroat Trout, Smith Lake is also stocked with Rainbow Trout and Cutthroat Trout, and Dollar Lake is also stocked with Rainbow Trout and Cutthroat Trout.