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Stocked last season

Island Lake Fish Stocking

Montana · 1934 to 2024 on record

According to FWP records, Island Lake has 37 stocking records on file across 7 species. The most recent stocking season represented is 2024.

Island Lake stocking
Island Lake photo
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37
Stocking records
592,285
Fish reported stocked
7
Species
2024
Latest season

Stocking activity by season

27 seasons on record, most in the 2011 (3 records). Click a bar to jump to that season below.

1 records
2024 · 500 fish
1946
1947
1948
1949
1950
1951
1953
1954
1963
1964
1966
1970
1991
2004
2006
2007
2008
2009
2010
2011
2012
2017
2020
2023
2024

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 27 seasons — the full history is listed below.

Most-stocked species

Rainbow Trout 10 records
Largemouth Bass 8 records
Yellowstone Cutthroat Trout 7 records
Golden Trout 5 records
Arctic Grayling 3 records

Location

47.3760, -113.8537

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Stocking history

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

SpeciesFish stockedSizePhase
Golden Trout 500 1.53 in Sylvan Lake

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

Quick facts

Latest season 2024
Most stocked Rainbow Trout
Species Rainbow Trout, Largemouth Bass, Yellowstone Cutthroat Trout, Golden Trout, Arctic Grayling, Brook Trout, Cutthroat Trout
Seasons on record 1934 – 2024
Fish reported 592,285
Coordinates 47.3760, -113.8537

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

Frequently asked questions

FWP records show Island Lake stocked with Rainbow Trout, Largemouth Bass, Yellowstone Cutthroat Trout, Golden Trout, Arctic Grayling, Brook Trout, Cutthroat Trout.

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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