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Montana stocking report

Flat Lake

79 records Last reported: June 5, 2025

Last reported stocking

The latest reported stocking at Flat Lake was on June 5, 2025: 1,000 Rainbow Trout (7.03 in avg).

Record last checked: . 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.

County
McCone
Species on record
Rainbow Trout, Northern Pike, Fathead Minnow, Largemouth Bass, Walleye
Records
79 records
Official source
Montana Fish, Wildlife & Parks report

Location map

Flat Lake location context

Agency coordinates · access unverified
Beaverhead County Big Horn County Blaine County Broadwater County Carbon County Carter County Cascade County Chouteau County Custer County Daniels County Dawson County Deer Lodge County Fallon County Fergus County Flathead County Gallatin County Garfield County Glacier County Golden Valley County Granite County Hill County Jefferson County Judith Basin County Lake County Lewis and Clark County Liberty County Lincoln County Madison County McCone County Meagher County Mineral County Missoula County Musselshell County Park County Petroleum County Phillips County Pondera County Powder River County Powell County Prairie County Ravalli County Richland County Roosevelt County Rosebud County Sanders County Sheridan County Silver Bow County Stillwater County Sweet Grass County Teton County Toole County Treasure County Valley County Wheatland County Wibaux County Yellowstone County MT Flat Lake, McCone County Flat Lake Lisk Creek Reservoir, McCone County Lisk Creek Reservoir Nielsen Dam, McCone County Nielsen Dam Berreth Reservoir, McCone County Berreth Reservoir Dreyer Reservoir, McCone County Dreyer Reservoir Kwasney Reservoir, McCone County Kwasney Reservoir Skunkbrush Reservoir, McCone County Skunkbrush Reservoir Hedstrom Lake, McCone County Hedstrom Lake Quick Reservoir, McCone County Quick Reservoir McCone County
Flat LakeAgency coordinates Lisk Creek ReservoirAgency coordinates Nielsen DamAgency coordinates Berreth ReservoirAgency coordinates Dreyer ReservoirAgency 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.

Before you go

Plan a trip to Flat 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.

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Agency records

Stocking history

79 records from May 15, 1973 to June 5, 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 / statusSpeciesFishSizeHatcherySource
June 5, 2025 reported Rainbow Trout1,0007.03 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2024 1 record
2024 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 27, 2024 reported Rainbow Trout1,0008.28 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2023 1 record
2023 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 14, 2023 reported Rainbow Trout1,0556.7 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2022 1 record
2022 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 24, 2022 reported Rainbow Trout1,0007.08 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2021 1 record
2021 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 19, 2021 reported Rainbow Trout1,0006.83 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2020 1 record
2020 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 26, 2020 reported Rainbow Trout1,0037.07 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2019 1 record
2019 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 7, 2019 reported Rainbow Trout1,0007.33 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2018 1 record
2018 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 13, 2018 reported Rainbow Trout5427.19 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2017 2 records
2017 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
October 31, 2017 reported Rainbow Trout2,0001.04 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
June 1, 2017 reported Rainbow Trout1,0066.87 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2016 2 records
2016 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 18, 2016 reported Rainbow Trout5037.32 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
May 18, 2016 reported Rainbow Trout5047.32 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2015 1 record
2015 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 11, 2015 reported Rainbow Trout1,0077.58 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2014 1 record
2014 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 27, 2014 reported Rainbow Trout1,0057.51 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2013 1 record
2013 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 18, 2013 reported Rainbow Trout1,0006.69 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2012 1 record
2012 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 21, 2012 reported Rainbow Trout1,0177.0200000000000005 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2011 1 record
2011 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 28, 2011 reported Rainbow Trout1,0007.4 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2010 1 record
2010 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 27, 2010 reported Rainbow Trout4527.0200000000000005 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2006 1 record
2006 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 4, 2006 reported Rainbow Trout2,0356.96 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
2004 2 records
2004 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 3, 2004 reported Rainbow Trout1,9477.5 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 3, 2004 reported Rainbow Trout15.9 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
2003 1 record
2003 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 28, 2003 reported Rainbow Trout2,0726.8500000000000005 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
2001 1 record
2001 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 30, 2001 reported Rainbow Trout2,0007 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2000 1 record
2000 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 3, 2000 reported Rainbow Trout2,0027 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1999 1 record
1999 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 3, 1999 reported Rainbow Trout1,9987.7 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1998 2 records
1998 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 30, 1998 reported Rainbow Trout9527.5 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 30, 1998 reported Rainbow Trout1,3007.3 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1997 2 records
1997 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 7, 1997 reported Rainbow Trout8008.3 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 4, 1997 reported Rainbow Trout3,0097.3 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1996 2 records
1996 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 2, 1996 reported Rainbow Trout1,9889.4 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 29, 1996 reported Rainbow Trout3,1507.2 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1995 2 records
1995 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 5, 1995 reported Rainbow Trout1,0009.5 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 24, 1995 reported Rainbow Trout1,5127.9 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1994 2 records
1994 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 28, 1994 reported Rainbow Trout1,5009.200000000000001 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 3, 1994 reported Rainbow Trout1,4968.1 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1993 3 records
1993 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
October 5, 1993 reported Rainbow Trout1,4986 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 1, 1993 reported Rainbow Trout1,0009.6 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 3, 1993 reported Rainbow Trout1,5087.7 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1990 2 records
1990 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 18, 1990 reported Northern Pike9,0001.5 in avg Miles City Fish Hatchery Montana Fish, Wildlife & Parks
May 10, 1990 reported Rainbow Trout1,8137.8 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1989 1 record
1989 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 9, 1989 reported Rainbow Trout2,4967.5 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1988 1 record
1988 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 5, 1988 reported Rainbow Trout2,4837.9 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1987 1 record
1987 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 6, 1987 reported Rainbow Trout2,5927.5 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1986 1 record
1986 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 3, 1986 reported Rainbow Trout2,2838 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1985 3 records
1985 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 29, 1985 reported Rainbow Trout3,2285 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 29, 1985 reported Rainbow Trout2,2137 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 17, 1985 reported Fathead Minnow6,0002 in avg Wild Montana Fish, Wildlife & Parks
1984 1 record
1984 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 13, 1984 reported Rainbow Trout3,7808 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1982 2 records
1982 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 15, 1982 reported Largemouth Bass4,0002 in avg Miles City - Federal Montana Fish, Wildlife & Parks
May 13, 1982 reported Rainbow Trout4,0028 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1981 3 records
1981 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 10, 1981 reported Rainbow Trout1,7909 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 10, 1981 reported Largemouth Bass2,5002 in avg Miles City - Federal Montana Fish, Wildlife & Parks
April 16, 1981 reported Rainbow Trout2,9048 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1980 2 records
1980 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
August 28, 1980 reported Rainbow Trout1,59612 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 1, 1980 reported Rainbow Trout3,0029 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1979 3 records
1979 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
October 3, 1979 reported Walleye1007 in avg Unknown Montana Fish, Wildlife & Parks
June 21, 1979 reported Walleye3,0001 in avg Miles City - Federal Montana Fish, Wildlife & Parks
May 22, 1979 reported Rainbow Trout3,4129 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1978 2 records
1978 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
October 12, 1978 reported Rainbow Trout2,41910 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 25, 1978 reported Rainbow Trout3,0029 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1977 3 records
1977 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 15, 1977 reported Rainbow Trout1,8006 in avg Bluewater Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 13, 1977 reported Rainbow Trout2,0028 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
March 23, 1977 reported Rainbow Trout5,0002 in avg Miles City - Federal Montana Fish, Wildlife & Parks
1976 4 records
1976 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 27, 1976 reported Rainbow Trout10018 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
September 27, 1976 reported Rainbow Trout51014 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 17, 1976 reported Rainbow Trout1,6328 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 14, 1976 reported Rainbow Trout5,0003 in avg Miles City - Federal Montana Fish, Wildlife & Parks
1975 4 records
1975 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 10, 1975 reported Rainbow Trout27916 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
August 19, 1975 reported Rainbow Trout71410 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 23, 1975 reported Rainbow Trout5,0005 in avg Miles City - Federal Montana Fish, Wildlife & Parks
June 12, 1975 reported Rainbow Trout2,5508 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1974 4 records
1974 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 5, 1974 reported Rainbow Trout7026 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
September 4, 1974 reported Rainbow Trout34922 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 24, 1974 reported Rainbow Trout3,0005 in avg Miles City - Federal Montana Fish, Wildlife & Parks
April 23, 1974 reported Rainbow Trout2,0408 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1973 4 records
1973 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 19, 1973 reported Rainbow Trout57116 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
September 19, 1973 reported Rainbow Trout5,3048 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 15, 1973 reported Rainbow Trout2,1429 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 15, 1973 reported Rainbow Trout5,2003 in avg Big Springs 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 . This check date is not a stocking date.

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