Brown Trout Stocking in Montana
250 Montana waters are on record as stocked with Brown Trout, per Montana fish & wildlife agency (1928–2026) — about 63,180,924 fish in total. Ranked by stocking activity, each with a full dated history. Brown Trout is typically stocked in spring and summer, most often in May.
About Brown Trout
A European native introduced across the U.S. in the late 1800s, now one of the most widely stocked and wild-reproducing trout in American rivers.
Full Brown Trout profile →When Brown 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
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
Warm Spring Creek
6 species · 662 records
Last stocked July 2013
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
Rainbow Dam Reservoir
4 species · 487 records
Last stocked October 2025
Judith River
5 species · 465 records
Last stocked June 2009
Stillwater River
8 species · 434 records
Last stocked August 1982
Cottonwood Creek
4 species · 418 records
Last stocked June 2005
Warm Springs Creek
5 species · 386 records
Last stocked August 1986
Thompson River
4 species · 384 records
Last stocked June 1989
Smith River
5 species · 353 records
Last stocked July 1973
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
Milk River
13 species · 325 records
Last stocked May 2014
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
Jefferson River
5 species · 286 records
Last stocked September 2003
Cut Bank Creek
4 species · 285 records
Last stocked July 2009
Sheep Creek
4 species · 276 records
Last stocked September 2008
Elk Creek
4 species · 270 records
Last stocked July 2000
Lake Elmo
15 species · 263 records
Last stocked June 2026
Willow Creek
5 species · 262 records
Last stocked August 2007
Ackley Lake
7 species · 255 records
Last stocked May 2026
Tongue River
13 species · 247 records
Last stocked April 2020
Marias River
8 species · 247 records
Last stocked September 2023
Mill Creek
5 species · 246 records
Last stocked April 2002
Duck Lake
7 species · 243 records
Last stocked May 2026
East Fork Reservoir
4 species · 240 records
Last stocked August 2025
Nilan Reservoir
4 species · 224 records
Last stocked May 2026
Tongue River Reservoir
10 species · 205 records
Last stocked October 2025
Sage Creek
5 species · 202 records
Last stocked September 2014
Sun River
5 species · 196 records
Last stocked April 1983
Clarks Fork Yellowstone River
6 species · 195 records
Last stocked February 1965
Eureka Reservoir
3 species · 189 records
Last stocked May 2021
Fish Creek
4 species · 188 records
Last stocked July 1973
South Fork Madison River
5 species · 185 records
Last stocked September 1982
Ruby River
4 species · 185 records
Last stocked June 2008
Saint Regis River
4 species · 182 records
Last stocked July 1973
Clear Creek
5 species · 180 records
Last stocked May 2013
Mission Lake
6 species · 179 records
Last stocked May 2026
Dry Wolf Creek
4 species · 169 records
Last stocked August 1993
East Rosebud Lake
3 species · 168 records
Last stocked June 2025
North Fork Musselshell River
4 species · 167 records
Last stocked July 1973
Frequently asked
Where is Brown Trout stocked in Montana?
Brown Trout is stocked in 250 Montana waters — all source-cited to Montana fish & wildlife agency.
When is Brown Trout stocked in Montana?
Brown Trout is typically stocked in spring and summer, most often in May in Montana.
How many Brown Trout are stocked in Montana?
About 63,180,924 Brown Trout have been stocked across Montana since 1928, per Montana fish & wildlife agency.
What size Brown Trout are stocked?
Stocked Brown Trout in Montana average about 3.8 inches, based on agency-reported sizes.
Other species in Montana
Showing the 60 most-stocked of 250 Brown Trout waters · Montana state stocking data.