Rainbow Trout Stocking in Montana
1,951 Montana waters are on record as stocked with Rainbow Trout, per Montana fish & wildlife agency (1924–2026) — about 486,856,189 fish in total. Ranked by stocking activity, each with a full dated history. Rainbow Trout is typically stocked in spring and summer, most often in May.
About Rainbow Trout
By far the most widely stocked fish in this dataset — the default put-and-take trout across every state tracked here, prized for its willingness to bite and strong fight.
Full Rainbow Trout profile →When Rainbow Trout is stocked in Montana
Canyon Ferry Lake
7 species · 2261 records
Last stocked September 2025
Fort Peck Lake
16 species · 1842 records
Last stocked July 2025
Yellowstone River
16 species · 1781 records
Last stocked October 2010
Missouri River
19 species · 1417 records
Last stocked October 2010
Boulder River
5 species · 1385 records
Last stocked July 1983
Madison River
5 species · 1310 records
Last stocked April 2006
Big Spring Creek
5 species · 1201 records
Last stocked July 1981
Holter Reservoir
3 species · 1185 records
Last stocked September 2025
Flathead Lake
14 species · 1161 records
Last stocked October 1997
Blackfoot River
2 species · 1011 records
Last stocked June 1992
Georgetown Lake
5 species · 968 records
Last stocked June 2026
Hebgen Lake
4 species · 944 records
Last stocked June 2023
Hauser Reservoir
10 species · 897 records
Last stocked April 2026
Big Hole River
5 species · 893 records
Last stocked August 1993
Bitterroot River
4 species · 860 records
Last stocked July 1979
Beaver Creek
13 species · 697 records
Last stocked June 2014
Lake Mary Ronan
8 species · 685 records
Last stocked June 2026
Warm Spring Creek
6 species · 662 records
Last stocked July 2013
Cooney Reservoir
7 species · 638 records
Last stocked May 2026
Spring Creek
6 species · 624 records
Last stocked July 2011
Rock Creek
6 species · 595 records
Last stocked May 2013
Musselshell River
7 species · 573 records
Last stocked July 1982
Deadmans Basin Reservoir
6 species · 547 records
Last stocked May 2026
Seeley Lake
7 species · 536 records
Last stocked May 2024
Lake Koocanusa
3 species · 532 records
Last stocked June 2024
Harpers Lake
5 species · 505 records
Last stocked June 2026
Gallatin River
3 species · 495 records
Last stocked April 2006
Rainbow Dam Reservoir
4 species · 487 records
Last stocked October 2025
Judith River
5 species · 465 records
Last stocked June 2009
Willow Creek Reservoir
5 species · 460 records
Last stocked June 2026
Clark Canyon Reservoir
1 species · 436 records
Last stocked July 2025
Stillwater River
8 species · 434 records
Last stocked August 1982
Echo Lake
10 species · 431 records
Last stocked September 2025
Cottonwood Creek
4 species · 418 records
Last stocked June 2005
Dailey Lake
11 species · 411 records
Last stocked May 2026
Little Bitterroot Lake
6 species · 411 records
Last stocked June 2024
Missoula Kids Pond
3 species · 394 records
Last stocked June 2026
Bozeman Pond
5 species · 389 records
Last stocked September 2025
Warm Springs Creek
5 species · 386 records
Last stocked August 1986
Lake Como
5 species · 384 records
Last stocked June 2026
Thompson River
4 species · 384 records
Last stocked June 1989
Crystal Lake
8 species · 373 records
Last stocked September 2025
Ashley Lake
5 species · 364 records
Last stocked September 2023
Bull Lake
6 species · 361 records
Last stocked May 2026
Smith River
5 species · 353 records
Last stocked July 1973
Ennis Lake
3 species · 351 records
Last stocked June 1994
Sweet Grass Creek
4 species · 345 records
Last stocked June 1984
Beaver Creek Reservoir
9 species · 342 records
Last stocked April 2026
Belt Creek
4 species · 339 records
Last stocked August 1996
Martinsdale Reservoir
4 species · 337 records
Last stocked May 2026
Mcgregor Lake
7 species · 334 records
Last stocked May 2026
Milk River
13 species · 325 records
Last stocked May 2014
Alder Gulch Creek
3 species · 316 records
Last stocked June 1985
Tetrault Lake
4 species · 307 records
Last stocked May 2026
Deep Creek
5 species · 307 records
Last stocked October 2008
Clark Fork River
4 species · 304 records
Last stocked September 2007
Wolf Creek
5 species · 302 records
Last stocked July 1989
Swan River
3 species · 299 records
Last stocked September 1992
Pishkun Reservoir
8 species · 289 records
Last stocked May 2026
Browns Lake
5 species · 286 records
Last stocked June 2026
Frequently asked
Where is Rainbow Trout stocked in Montana?
Rainbow Trout is stocked in 1,951 Montana waters — all source-cited to Montana fish & wildlife agency.
When is Rainbow Trout stocked in Montana?
Rainbow Trout is typically stocked in spring and summer, most often in May in Montana.
How many Rainbow Trout are stocked in Montana?
About 486,856,189 Rainbow Trout have been stocked across Montana since 1924, per Montana fish & wildlife agency.
What size Rainbow Trout are stocked?
Stocked Rainbow Trout in Montana average about 7.1 inches, based on agency-reported sizes.
Other species in Montana
Showing the 60 most-stocked of 1,951 Rainbow Trout waters · Montana state stocking data.