When was Flathead Lake last stocked?

The most recent stocking season on record for Flathead Lake is 1997. Montana's source reports by season, not an exact date.

Does a stocking record mean the fish are still there?

No. A record means fish were reported stocked. Fish may have been caught, moved or died since. Always check current regulations before fishing.

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Stocked last season

Flathead Lake Fish Stocking

Montana · 1924 to 1997 on record

According to FWP records, Flathead Lake has 1,161 stocking records on file across 15 species. The most recent stocking season represented is 1997.

Kokanee Cutthroat Trout Rainbow Trout Lake Whitefish Westslope Cutthroat Trout Largemouth Bass Brook Trout Bull Trout Coho Salmon Arctic Grayling Chinook Salmon Yellow Perch Bass Mountain Whitefish Whitefish

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1,161

Stocking records

107,477,002

Fish reported stocked

Species

1997

Latest season

Stocking activity by season

71 seasons on record, most in the 1951 (72 records). Click a bar to jump to that season below.

4 records

1997 · 1,503,485 fish

1973

1974

1975

1976

1977

1978

1979

1980

1981

1982

1983

1984

1985

1986

1987

1988

1989

1990

1991

1992

1993

1994

1995

1996

1997

Stocking records per season (labelled by the season's end year). Montana's source reports by season, so records aren't broken out by month. Showing the most recent 25 of 71 seasons — the full history is listed below.

Most-stocked species

Kokanee 573 records

Cutthroat Trout 295 records

Rainbow Trout 196 records

Lake Whitefish 48 records

Westslope Cutthroat Trout 18 records

Location

47.9165, -114.0996

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Stocking history

Values shown exactly as the agency reported them; species names are normalized for search.

SpeciesFish stockedSizePhase

Kokanee 41,951 7.3 in —

Kokanee 750,389 2.8 in —

Kokanee 708,798 5.5 in —

Kokanee 2,347 14.2 in —

SpeciesFish stockedSizePhase

Kokanee 149,730 1.9 in Lake Mary Ronan

Kokanee 371,000 1.5 in —

Kokanee 870,000 1.8 in —

Kokanee 60,000 1.7 in —

Kokanee 190,785 1.9 in Lake Mary Ronan

Kokanee 87,500 3.1 in Lake Mary Ronan

Kokanee 84,233 3.1 in Lake Mary Ronan

Kokanee 71,981 3.1 in Lake Mary Ronan

Kokanee 10,950 2.5 in Grandby Reservoir - CO

Kokanee 57,498 2.2 in Grandby Reservoir - CO

Kokanee 104,463 2.5 in Grandby Reservoir - CO

Kokanee 109,500 2.5 in Grandby Reservoir - CO

Kokanee 9,750 2.6 in —

Kokanee 23,400 2.6 in —

Kokanee 78,000 2.6 in —

Kokanee 20,295 1.9 in —

Largemouth Bass 17,361 1.4 in Colorado

SpeciesFish stockedSizePhase

Kokanee 128,940 2.1 in Lake Mary Ronan

Kokanee 448,400 1.4 in —

Kokanee 412,224 1.4 in —

Kokanee 250,000 1.5 in —

Kokanee 151,000 2.4 in Grandby Reservoir - CO

Kokanee 135,000 2.4 in Grandby Reservoir - CO

Kokanee 111,441 2.1 in Lake Mary Ronan

Kokanee 52,160 2.7 in Lake Mary Ronan

Kokanee 48,177 2.2 in Lake Mary Ronan

Kokanee 39,283 2.7 in Lake Mary Ronan

Kokanee 31,753 2.2 in Lake Mary Ronan

Kokanee 19,560 2.7 in Lake Mary Ronan

Kokanee 14,336 2.3 in Grandby Reservoir - CO

Kokanee 276,800 1.7 in Lake Mary Ronan

Kokanee 228,360 1.7 in Lake Mary Ronan

Kokanee 64,470 2.1 in Lake Mary Ronan

Kokanee 59,414 1.6 in Lake Mary Ronan

Kokanee 19,154 2.2 in Lake Mary Ronan

Kokanee 44,074 2.2 in Lake Mary Ronan

Mountain Whitefish 20,000 0.8 in Hungry Horse Reservoir/Creek

SpeciesFish stockedSizePhase

Kokanee 66,000 1.4 in —

Kokanee 1,700,000 1.4 in —

Kokanee 38,430 2 in —

Kokanee 31,730 2.7 in —

Kokanee 29,868 2.2 in —

Kokanee 27,808 2.2 in —

Kokanee 99,990 2.5 in Grandby Reservoir - CO

Kokanee 86,305 2.6 in Grandby Reservoir - CO

Kokanee 61,610 2.5 in Grandby Reservoir - CO

Kokanee 22,800 1.6 in Grandby Reservoir - CO

Kokanee 70,226 1.9 in Glen Lake

Kokanee 173,362 2 in —

Kokanee 364,800 1.6 in Grandby Reservoir - CO

Kokanee 38,000 1.6 in Grandby Reservoir - CO

Kokanee 850,000 1.7 in —

Kokanee 208,544 2 in Grandby Reservoir - CO

A stocking record does not guarantee fish remain present or may legally be harvested. Check current Montana fishing regulations →

Quick facts

Latest season 1997

Most stocked Kokanee

Species Kokanee, Cutthroat Trout, Rainbow Trout, Lake Whitefish, Westslope Cutthroat Trout, Largemouth Bass, Brook Trout, Bull Trout, Coho Salmon, Arctic Grayling, Chinook Salmon, Yellow Perch, Bass, Mountain Whitefish, Whitefish

Seasons on record 1924 – 1997

Fish reported 107,477,002

Coordinates 47.9165, -114.0996

Data source

Compiled from public records published by the Montana Fish, Wildlife & Parks. StockedSpots is independent and not affiliated with or endorsed by FWP.

Source: Montana Fish, Wildlife & Parks (FWP). Data last checked September 1, 2026.

View FWP source →

Nearby stocked waters

State: Montana 3.4 mi

Yellow Bay Creek

4 records · 1 species

Latest 1933

State: Montana 3.9 mi

Ronan Creek

6 records · 1 species

Latest 2002

State: Montana 7.0 mi

Estes Lake

6 records · 2 species

Latest 1987

State: Montana 7.5 mi

Teepee Creek

10 records · 2 species

Latest 1947

State: Montana 7.5 mi

Stoner Creek

24 records · 3 species

Latest 1986

State: Montana 8.5 mi

Skags Lake

13 records · 4 species

Latest 1981

Frequently asked questions

FWP records show Flathead Lake stocked with Kokanee, Cutthroat Trout, Rainbow Trout, Lake Whitefish, Westslope Cutthroat Trout, Largemouth Bass, Brook Trout, Bull Trout, Coho Salmon, Arctic Grayling, Chinook Salmon, Yellow Perch, Bass, Mountain Whitefish, Whitefish.

See something that looks off?

Every stocking record on StockedSpots is pulled directly from official state wildlife agency sources — you can see exactly where each state's data comes from on our data sources page. If a record looks wrong, or you'd like a page reviewed or removed, let us know and we'll look into it.

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