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Montana stocking report

Heart Lake

38 records Last reported: September 17, 2025

Last reported stocking

The latest reported stocking at Heart Lake was on September 17, 2025: 300 Westslope Cutthroat Trout (2.23 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.

Counties
Lewis and Clark, Mineral, Missoula
Species on record
Westslope Cutthroat Trout, Golden Trout, Arctic Grayling, Rainbow Trout, Cutthroat Trout, Brown Trout
Records
38 records
Official source
Montana Fish, Wildlife & Parks report

Location map

Heart 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 Heart Lake, Lewis and Clark County Heart Lake Willow Creek Reservoir, Lewis and Clark County Willow Creek Reservoir Nilan Reservoir, Lewis and Clark County Nilan Reservoir Wood Lake, Lewis and Clark County Wood Lake Helena Valley Regulating Reservoir, Lewis and Clark County Helena Valley Regulating Re… Spring Meadow Lake, Lewis and Clark County Spring Meadow Lake Hauser Reservoir, Lewis and Clark County Hauser Reservoir Holter Reservoir, Lewis and Clark County Holter Reservoir Renshaw Lake, Lewis and Clark County Renshaw Lake Lewis and Clark County
Heart LakeAgency coordinates Willow Creek ReservoirAgency coordinates Nilan ReservoirAgency coordinates Wood LakeAgency coordinates Helena Valley Regulating 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.

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 Heart 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 Heart Lake? Also on record: Heart Lake (Camas County, Idaho) · Heart Lake (Custer County, Idaho) · Heart Lake (Elmore County, Idaho) · Heart Lake (Lemhi County, Idaho) · Heart Lake (Shoshone County, Idaho)

Agency records

Stocking history

38 records from September 2, 1931 to September 17, 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
September 17, 2025 reported Westslope Cutthroat Trout3002.23 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
2024 1 record
2024 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 30, 2024 reported Golden Trout1,0001.53 in avg Yellowstone River Trout Hatchery Montana Fish, Wildlife & Parks
2022 1 record
2022 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
October 19, 2022 reported Westslope Cutthroat Trout4,2002.25 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
2021 1 record
2021 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 8, 2021 reported Arctic Grayling4,5001 in avg Flathead Lake Salmon Hatchery Montana Fish, Wildlife & Parks
2019 1 record
2019 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 31, 2019 reported Westslope Cutthroat Trout3001.93 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
2017 1 record
2017 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 12, 2017 reported Golden Trout2,0001.09 in avg Yellowstone River Trout Hatchery Montana Fish, Wildlife & Parks
2016 1 record
2016 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
August 16, 2016 reported Westslope Cutthroat Trout2,0001.31 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
2014 1 record
2014 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 29, 2014 reported Westslope Cutthroat Trout3001.79 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
2012 1 record
2012 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 5, 2012 reported Arctic Grayling4,0001 in avg Flathead Lake Salmon Hatchery Montana Fish, Wildlife & Parks
2011 2 records
2011 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 12, 2011 reported Golden Trout1,0000.93 in avg Yellowstone River Trout Hatchery Montana Fish, Wildlife & Parks
August 31, 2011 reported Westslope Cutthroat Trout2,0002.21 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
2007 1 record
2007 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
August 7, 2007 reported Westslope Cutthroat Trout3001.4000000000000001 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
2006 3 records
2006 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 25, 2006 reported Westslope Cutthroat Trout2,0001.83 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
July 25, 2006 reported Golden Trout4005.5 in avg Yellowstone River Trout Hatchery Montana Fish, Wildlife & Parks
July 25, 2006 reported Arctic Grayling5,6800.6 in avg Flathead Lake Salmon Hatchery Montana Fish, Wildlife & Parks
2001 1 record
2001 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
August 9, 2001 reported Westslope Cutthroat Trout3,0001.7 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
2000 1 record
2000 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
August 2, 2000 reported Westslope Cutthroat Trout3751.6 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
1996 1 record
1996 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
August 30, 1996 reported Westslope Cutthroat Trout3,6001.8 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
1989 1 record
1989 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 10, 1989 reported Arctic Grayling20,0000.1 in avg Flathead Lake Salmon Hatchery Montana Fish, Wildlife & Parks
1988 1 record
1988 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 27, 1988 reported Westslope Cutthroat Trout4,9871.6 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
1977 1 record
1977 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
August 11, 1977 reported Rainbow Trout1,0005 in avg Jocko River Trout Hatchery Montana Fish, Wildlife & Parks
1965 1 record
1965 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 2, 1965 reported Arctic Grayling12,000 Flathead Lake Salmon Hatchery Montana Fish, Wildlife & Parks
1964 1 record
1964 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 5, 1964 reported Arctic Grayling20,000 Flathead Lake Salmon Hatchery Montana Fish, Wildlife & Parks
1963 1 record
1963 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 4, 1963 reported Golden Trout4,4201 in avg Flathead Lake Salmon Hatchery Montana Fish, Wildlife & Parks
1962 1 record
1962 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 1, 1962 reported Arctic Grayling10,000 Flathead Lake Salmon Hatchery Montana Fish, Wildlife & Parks
1960 1 record
1960 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 30, 1960 reported Arctic Grayling10,0001 in avg Flathead Lake Salmon Hatchery Montana Fish, Wildlife & Parks
1952 2 records
1952 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
August 27, 1952 reported Cutthroat Trout6,2401 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
August 15, 1952 reported Cutthroat Trout6,8641 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
1950 1 record
1950 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 21, 1950 reported Cutthroat Trout3,6001 in avg Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
1948 1 record
1948 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
August 20, 1948 reported Cutthroat Trout16,0002 in avg Ovando Montana Fish, Wildlife & Parks
1943 1 record
1943 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 12, 1943 reported Cutthroat Trout8,0002 in avg Ovando Montana Fish, Wildlife & Parks
1942 2 records
1942 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 11, 1942 reported Cutthroat Trout8,0002 in avg Ovando Montana Fish, Wildlife & Parks
July 15, 1942 reported Brown Trout7,615 Hamilton Montana Fish, Wildlife & Parks
1937 1 record
1937 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
October 8, 1937 reported Rainbow Trout10,000 Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
1934 1 record
1934 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 2, 1934 reported Arctic Grayling97,500 Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
1932 2 records
1932 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 28, 1932 reported Arctic Grayling450,000 Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
June 23, 1932 reported Arctic Grayling275,000 Washoe Park Trout Hatchery Montana Fish, Wildlife & Parks
1931 1 record
1931 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 2, 1931 reported Cutthroat Trout36,0002 in avg Unknown 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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