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Idaho stocking report

Cow Lake

29 records Last reported: September 25, 2025

Last reported stocking

The latest reported stocking at Cow Lake was on September 25, 2025: 749 Triploid Rainbow Trout (Fry (0-3 inches)).

Record last checked: . This is not a stocking date.

Browse stocking history

Source: Idaho Department of Fish and Game.

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.

County
Boise
Species on record
Triploid Rainbow Trout, Westslope Cutthroat Trout, Cutbow - Cutthroat x Rainbow Trout - Diploid, Cutbow (Cutthroat × Rainbow Trout), Cutthroat Trout
Records
29 records
Official source
Idaho Department of Fish and Game report

Location map

Cow Lake location context

Approximate · county context
Ada County Adams County Bannock County Bear Lake County Benewah County Bingham County Blaine County Boise County Bonner County Bonneville County Boundary County Butte County Camas County Canyon County Caribou County Cassia County Clark County Clearwater County Custer County Elmore County Franklin County Fremont County Gem County Gooding County Idaho County Jefferson County Jerome County Kootenai County Latah County Lemhi County Lewis County Lincoln County Madison County Minidoka County Nez Perce County Oneida County Owyhee County Payette County Power County Shoshone County Teton County Twin Falls County Valley County Washington County ID Boise County
Cow LakeBoise County only South Fork Boise RiverElmore County only North Fork Boise RiverElmore County only North Fork Payette RiverValley County only Middle Fork Payette RiverValley County only

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.

Before you go

Plan a trip to Cow 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 Idaho'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 Cow Lake? Also on record: Cow Lake (Valley County, Idaho) · Cow Lake (Adams County, Washington)

Agency records

Stocking history

29 records from September 9, 1969 to September 25, 2025. 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.

2025 1 record
2025 stocking records and official sources
Date / statusSpeciesFishSizeSource
September 25, 2025 reported Triploid Rainbow Trout749Fry (0-3 inches) Idaho Department of Fish and Game
2023 2 records
2023 stocking records and official sources
Date / statusSpeciesFishSizeSource
July 31, 2023 reported Triploid Rainbow Trout251Fry (0-3 inches) Idaho Department of Fish and Game
July 31, 2023 reported Triploid Rainbow Trout256Fry (0-3 inches) Idaho Department of Fish and Game
2021 1 record
2021 stocking records and official sources
Date / statusSpeciesFishSizeSource
September 15, 2021 reported Triploid Rainbow Trout750Fry (0-3 inches) Idaho Department of Fish and Game
2019 1 record
2019 stocking records and official sources
Date / statusSpeciesFishSizeSource
October 1, 2019 reported Triploid Rainbow Trout750Fry (0-3 inches) Idaho Department of Fish and Game
2017 1 record
2017 stocking records and official sources
Date / statusSpeciesFishSizeSource
September 11, 2017 reported Triploid Rainbow Trout750Fry (0-3 inches) Idaho Department of Fish and Game
2015 1 record
2015 stocking records and official sources
Date / statusSpeciesFishSizeSource
September 12, 2015 reported Triploid Rainbow Trout750Fry (0-3 inches) Idaho Department of Fish and Game
2013 1 record
2013 stocking records and official sources
Date / statusSpeciesFishSizeSource
September 11, 2013 reported Triploid Rainbow Trout750Fry (0-3 inches) Idaho Department of Fish and Game
2011 1 record
2011 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 24, 2011 reported Triploid Rainbow Trout750Fry (0-3 inches) Idaho Department of Fish and Game
2008 2 records
2008 stocking records and official sources
Date / statusSpeciesFishSizeSource
October 1, 2008 reported Westslope Cutthroat Trout300Fry (0-3 inches) Idaho Department of Fish and Game
September 27, 2008 reported Westslope Cutthroat Trout490Fry (0-3 inches) Idaho Department of Fish and Game
2005 1 record
2005 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 28, 2005 reported Westslope Cutthroat Trout750Fry (0-3 inches) Idaho Department of Fish and Game
2003 1 record
2003 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 30, 2003 reported Westslope Cutthroat Trout750Fry (0-3 inches) Idaho Department of Fish and Game
2001 1 record
2001 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 15, 2001 reported Westslope Cutthroat Trout750Fry (0-3 inches) Idaho Department of Fish and Game
1999 1 record
1999 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 26, 1999 reported Westslope Cutthroat Trout500Fry (0-3 inches) Idaho Department of Fish and Game
1997 1 record
1997 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 13, 1997 reported Westslope Cutthroat Trout750Fry (0-3 inches) Idaho Department of Fish and Game
1994 1 record
1994 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 19, 1994 reported Westslope Cutthroat Trout400Fry (0-3 inches) Idaho Department of Fish and Game
1991 1 record
1991 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 22, 1991 reported Westslope Cutthroat Trout750Fry (0-3 inches) Idaho Department of Fish and Game
1988 1 record
1988 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 25, 1988 reported Westslope Cutthroat Trout750Fry (0-3 inches) Idaho Department of Fish and Game
1984 1 record
1984 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 9, 1984 reported Westslope Cutthroat Trout698Fry (0-3 inches) Idaho Department of Fish and Game
1981 2 records
1981 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 16, 1981 reported Cutbow - Cutthroat x Rainbow Trout - Diploid700Fry (0-3 inches) Idaho Department of Fish and Game
August 16, 1981 reported Cutbow (Cutthroat × Rainbow Trout)700Fry (0-3 inches) Idaho Department of Fish and Game
1978 1 record
1978 stocking records and official sources
Date / statusSpeciesFishSizeSource
July 30, 1978 reported Cutthroat Trout715Fry (0-3 inches) Idaho Department of Fish and Game
1977 1 record
1977 stocking records and official sources
Date / statusSpeciesFishSizeSource
July 23, 1977 reported Cutthroat Trout940Fry (0-3 inches) Idaho Department of Fish and Game
1975 1 record
1975 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 15, 1975 reported Cutthroat Trout1,532Fry (0-3 inches) Idaho Department of Fish and Game
1974 1 record
1974 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 18, 1974 reported Cutthroat Trout784Fry (0-3 inches) Idaho Department of Fish and Game
1973 1 record
1973 stocking records and official sources
Date / statusSpeciesFishSizeSource
July 25, 1973 reported Cutthroat Trout1,446Fry (0-3 inches) Idaho Department of Fish and Game
1972 1 record
1972 stocking records and official sources
Date / statusSpeciesFishSizeSource
August 9, 1972 reported Cutthroat Trout1,950Fry (0-3 inches) Idaho Department of Fish and Game
1969 1 record
1969 stocking records and official sources
Date / statusSpeciesFishSizeSource
September 9, 1969 reported Cutthroat Trout2,000Fry (0-3 inches) Idaho Department of Fish and Game

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: Idaho Department of Fish and Game. A record for this water was last checked on . This check date is not a stocking date.

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