What species are stocked in Island Lake?

On record: Golden Trout, Yellowstone Cutthroat Trout, Largemouth Bass, Arctic Grayling, Rainbow Trout, Brook Trout, Cutthroat Trout. Source: Montana Fish, Wildlife & Parks.

Home / Montana / Stillwater County / Island Lake

Montana stocking report

Island Lake

37 records Last reported: September 30, 2024

Last reported stocking

The latest reported stocking at Island Lake was on September 30, 2024: 500 Golden Trout (1.53 in avg).

Record last checked: 2026-07-24. This is not a stocking date.

Browse stocking history

Source: Montana Fish, Wildlife & Parks.

A schedule is a plan, not confirmation that fish were released. Stocking records do not guarantee fish are still available.

No current or upcoming schedule is in this archive. Check the official report before choosing a trip date.

Counties: Stillwater, Lincoln, Missoula
Species on record: Golden Trout, Yellowstone Cutthroat Trout, Largemouth Bass, Arctic Grayling, Rainbow Trout, Brook Trout, Cutthroat Trout
Records: 37 records
Official source: Montana Fish, Wildlife & Parks report

Location map

Island Lake location context

Agency coordinates · access unverified

Island LakeAgency coordinates Emerald LakeAgency coordinates West Rosebud LakeAgency coordinates Bokma ReservoirAgency coordinates Crater LakeAgency coordinates

Pins appear only when the record includes coordinates; they are not verified access points. Shaded counties show area context only. Waters without coordinates stay in the list without a pin; confirm access and directions with the official agency source.

Check the exact water: This page groups records with the same name across 3 counties. They may describe different waters or reaches; the map does not identify all of them.

Before you go

Plan a trip to Island Lake

Check the latest report

Confirm dates and any changes in the official stocking report. Historical schedules are kept below even after their planned dates pass.

Check access and fishing rules

Use Montana's official fishing information to find current guidance. Confirm the exact water, public access, closures, and applicable fishing rules before leaving.

Choose the right location

The map gives location context. A shaded county is area context, not directions to a fishing spot or evidence of public access.

Get stocking alerts for this water

Looking for a different Island Lake? Also on record: Island Lake (Custer County, Idaho) · Island Lake (Elmore County, Idaho) · Island Lake (Alger County, Michigan) · Island Lake (Livingston County, Michigan) · Island Lake (Marquette County, Michigan)

Agency records

Stocking history

37 records from September 7, 1934 to September 30, 2024. Open a year to browse its records; scroll tables sideways for all columns. Scheduled means planned, even when the date has passed. Blank fields mean the source did not publish that detail.

2024 1 record

2024 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
September 30, 2024 reported	Golden Trout	500	1.53 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

2023 1 record

2023 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 1, 2023 reported	Yellowstone Cutthroat Trout	500	2.54 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

2020 1 record

2020 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 21, 2020 reported	Yellowstone Cutthroat Trout	500	2.83 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

2017 2 records

2017 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
September 12, 2017 reported	Golden Trout	1,000	1.09 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks
July 24, 2017 reported	Yellowstone Cutthroat Trout	500	2.3000000000000003 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

2012 1 record

2012 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 25, 2012 reported	Largemouth Bass	22,500	1.2 in avg	Miles City Fish Hatchery	Montana Fish, Wildlife & Parks

2011 3 records

2011 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
September 12, 2011 reported	Golden Trout	500	0.93 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks
July 27, 2011 reported	Largemouth Bass	22,500	1.6 in avg	Miles City Fish Hatchery	Montana Fish, Wildlife & Parks
July 20, 2011 reported	Yellowstone Cutthroat Trout	1,000	2.9 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

2010 2 records

2010 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 13, 2010 reported	Yellowstone Cutthroat Trout	1,302	2.4 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks
July 20, 2010 reported	Largemouth Bass	22,500	1.2 in avg	Miles City Fish Hatchery	Montana Fish, Wildlife & Parks

2009 2 records

2009 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
September 16, 2009 reported	Yellowstone Cutthroat Trout	100	14 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks
July 11, 2009 reported	Yellowstone Cutthroat Trout	1,000	2 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

2008 1 record

2008 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 29, 2008 reported	Largemouth Bass	22,500	1.1 in avg	Miles City Fish Hatchery	Montana Fish, Wildlife & Parks

2007 1 record

2007 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 24, 2007 reported	Largemouth Bass	14,600	1.6 in avg	Miles City Fish Hatchery	Montana Fish, Wildlife & Parks

2006 2 records

2006 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 25, 2006 reported	Golden Trout	900	5.5 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks
July 18, 2006 reported	Largemouth Bass	14,000	1.7 in avg	Miles City Fish Hatchery	Montana Fish, Wildlife & Parks

2004 1 record

2004 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 17, 2004 reported	Largemouth Bass	22,500	1.3 in avg	Miles City Fish Hatchery	Montana Fish, Wildlife & Parks

1991 1 record

1991 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 1, 1991 reported	Largemouth Bass	15,000	1.2 in avg	Miles City Fish Hatchery	Montana Fish, Wildlife & Parks

1970 1 record

1970 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 4, 1970 reported	Arctic Grayling	20,000	1 in avg	Flathead Lake Salmon Hatchery	Montana Fish, Wildlife & Parks

1966 2 records

1966 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
October 28, 1966 reported	Rainbow Trout	15,130	4 in avg	Creston National Fish Hatchery	Montana Fish, Wildlife & Parks
October 27, 1966 reported	Rainbow Trout	14,960	4 in avg	Creston National Fish Hatchery	Montana Fish, Wildlife & Parks

1964 2 records

1964 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
September 8, 1964 reported	Brook Trout	29,440	4 in avg	Giant Springs Trout Hatchery	Montana Fish, Wildlife & Parks
June 30, 1964 reported	Brook Trout	51,100	3 in avg	Giant Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1963 1 record

1963 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
September 4, 1963 reported	Golden Trout	4,420	1 in avg	Flathead Lake Salmon Hatchery	Montana Fish, Wildlife & Parks

1954 1 record

1954 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 28, 1954 reported	Cutthroat Trout	15,180		Flathead Lake Salmon Hatchery	Montana Fish, Wildlife & Parks

1953 1 record

1953 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
June 7, 1953 reported	Arctic Grayling	100,000		Flathead Lake Salmon Hatchery	Montana Fish, Wildlife & Parks

1951 1 record

1951 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
June 7, 1951 reported	Arctic Grayling	50,000		Flathead Lake Salmon Hatchery	Montana Fish, Wildlife & Parks

1950 1 record

1950 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
June 30, 1950 reported	Rainbow Trout	4,100	99 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

1949 2 records

1949 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
June 14, 1949 reported	Rainbow Trout	24,990		Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks
June 14, 1949 reported	Rainbow Trout	17,850		Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

1948 1 record

1948 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
June 9, 1948 reported	Rainbow Trout	25,440	99 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

1947 1 record

1947 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
June 9, 1947 reported	Rainbow Trout	25,440	99 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

1946 1 record

1946 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
September 11, 1946 reported	Rainbow Trout	2,333	2 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

1941 2 records

1941 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
September 6, 1941 reported	Rainbow Trout	15,000	2 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks
June 13, 1941 reported	Cutthroat Trout	5,000	4 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

1934 1 record

1934 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
September 7, 1934 reported	Rainbow Trout	8,000	3 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

Records retain the dates, quantities, and status supplied by the linked agencies. An event missing here does not mean the water was not stocked - some plants go unreported or are published elsewhere.

Grouped by county and sorted by latest record, not by driving distance. Confirm access for each water.

Data source: Montana Fish, Wildlife & Parks. A record for this water was last checked on 2026-07-24. This check date is not a stocking date.

Alert me about Island Lake