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Montana stocking report

Grasshopper Reservoir

87 records Last reported: September 23, 2025

Last reported stocking

The latest reported stocking at Grasshopper Reservoir was on September 23, 2025: 2,597 Rainbow Trout (7.3 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
Blaine
Species on record
Rainbow Trout, Tiger Muskellunge, Largemouth Bass
Records
87 records
Official source
Montana Fish, Wildlife & Parks report

Location map

Grasshopper Reservoir 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 Grasshopper Reservoir, Blaine County Grasshopper Reservoir Petrie Pond, Blaine County Petrie Pond Salmo Reservoir, Blaine County Salmo Reservoir Faber Reservoir, Blaine County Faber Reservoir Reser Reservoir, Blaine County Reser Reservoir Cow Creek Reservoir, Blaine County Cow Creek Reservoir Anderson Reservoir, Blaine County Anderson Reservoir Ross Reservoir, Blaine County Ross Reservoir BR 045 Reservoir, Blaine County BR 045 Reservoir Blaine County
Grasshopper ReservoirAgency coordinates Petrie PondAgency coordinates Salmo ReservoirAgency coordinates Faber ReservoirAgency coordinates Reser 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 Grasshopper Reservoir

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

87 records from September 10, 1947 to September 23, 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 2 records
2025 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 23, 2025 reported Rainbow Trout2,5977.3 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 30, 2025 reported Rainbow Trout4,0002.87 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2024 1 record
2024 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 28, 2024 reported Rainbow Trout4,0003.23 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2023 2 records
2023 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 13, 2023 reported Rainbow Trout3,0565.69 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 30, 2023 reported Rainbow Trout4,2632.74 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2022 1 record
2022 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 25, 2022 reported Rainbow Trout4,0003.25 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2021 2 records
2021 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
October 1, 2021 reported Rainbow Trout3,0607.19 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 1, 2021 reported Rainbow Trout4,0003.1 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2020 1 record
2020 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 6, 2020 reported Rainbow Trout4,2613.08 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2019 3 records
2019 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 23, 2019 reported Rainbow Trout1,0177.17 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 8, 2019 reported Tiger Muskellunge5004.93 in avg Miles City Fish Hatchery Montana Fish, Wildlife & Parks
May 13, 2019 reported Rainbow Trout2,5002.65 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2018 1 record
2018 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 3, 2018 reported Rainbow Trout2,5002.47 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2017 2 records
2017 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
October 11, 2017 reported Rainbow Trout3,2646.97 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 13, 2017 reported Rainbow Trout2,5002.02 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2016 1 record
2016 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 7, 2016 reported Rainbow Trout2,5002.09 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2015 2 records
2015 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 15, 2015 reported Rainbow Trout3,1016.73 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 16, 2015 reported Rainbow Trout2,5002.0100000000000002 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2014 1 record
2014 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 14, 2014 reported Rainbow Trout2,5002.45 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2013 3 records
2013 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 13, 2013 reported Rainbow Trout3,0305.99 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 26, 2013 reported Tiger Muskellunge1503 in avg Miles City Fish Hatchery Montana Fish, Wildlife & Parks
June 19, 2013 reported Rainbow Trout2,5003.27 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2012 1 record
2012 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 8, 2012 reported Rainbow Trout2,5002.72 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2011 2 records
2011 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
October 4, 2011 reported Rainbow Trout2,9984.13 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 18, 2011 reported Rainbow Trout2,5003.09 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2010 2 records
2010 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 8, 2010 reported Rainbow Trout15.9 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
June 15, 2010 reported Rainbow Trout1,9234.45 in avg Fort Peck Hatchery Montana Fish, Wildlife & Parks
2009 2 records
2009 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 25, 2009 reported Rainbow Trout2,9964 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 21, 2009 reported Rainbow Trout2,5004 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2008 1 record
2008 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 1, 2008 reported Rainbow Trout2,5003.2 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2007 3 records
2007 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 14, 2007 reported Rainbow Trout5,7193.5700000000000003 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
September 14, 2007 reported Rainbow Trout2944.54 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 24, 2007 reported Rainbow Trout2,5003.4 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2006 2 records
2006 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 4, 2006 reported Rainbow Trout3,0003.22 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 20, 2006 reported Rainbow Trout2,5003.4 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2005 2 records
2005 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 15, 2005 reported Rainbow Trout3,2555.12 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 13, 2005 reported Rainbow Trout2,5003.5700000000000003 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2004 1 record
2004 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 14, 2004 reported Rainbow Trout2,0003.5 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2003 3 records
2003 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 24, 2003 reported Rainbow Trout1,5004.37 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
September 24, 2003 reported Rainbow Trout1,6103.79 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 22, 2003 reported Rainbow Trout2,5004.3 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2002 1 record
2002 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 30, 2002 reported Rainbow Trout1,0004.2 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2001 1 record
2001 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 1, 2001 reported Rainbow Trout2,3753.7 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2000 1 record
2000 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 18, 2000 reported Rainbow Trout2,0003.5 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1999 1 record
1999 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 20, 1999 reported Rainbow Trout2,5003.3000000000000003 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1998 2 records
1998 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 21, 1998 reported Rainbow Trout4,5003.4 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 14, 1998 reported Rainbow Trout10,0762.3000000000000003 in avg Bluewater Springs Trout Hatchery Montana Fish, Wildlife & Parks
1997 2 records
1997 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 15, 1997 reported Rainbow Trout4,4034.7 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 17, 1997 reported Rainbow Trout3,0003.1 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1996 2 records
1996 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 25, 1996 reported Rainbow Trout3,9156.5 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 17, 1996 reported Rainbow Trout5,0013.2 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1995 1 record
1995 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 20, 1995 reported Rainbow Trout2,5003.3000000000000003 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1994 1 record
1994 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 14, 1994 reported Rainbow Trout5,0003.1 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1993 1 record
1993 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 3, 1993 reported Rainbow Trout3,0635.1000000000000005 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1992 2 records
1992 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 29, 1992 reported Rainbow Trout2,5006.7 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 9, 1992 reported Rainbow Trout5,0002.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1990 1 record
1990 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 18, 1990 reported Rainbow Trout5,2443.5 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1989 1 record
1989 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 26, 1989 reported Rainbow Trout2,0094.8 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1988 2 records
1988 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 14, 1988 reported Largemouth Bass20,0000.5 in avg Miles City Fish Hatchery Montana Fish, Wildlife & Parks
April 15, 1988 reported Rainbow Trout5,0023.7 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1987 2 records
1987 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 14, 1987 reported Rainbow Trout4,9845.1000000000000005 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 11, 1987 reported Largemouth Bass20,0000.5 in avg Miles City Fish Hatchery Montana Fish, Wildlife & Parks
1986 2 records
1986 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 9, 1986 reported Rainbow Trout6,5385 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 29, 1986 reported Largemouth Bass1,8002 in avg Miles City Fish Hatchery Montana Fish, Wildlife & Parks
1985 2 records
1985 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 28, 1985 reported Rainbow Trout2,5004 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 18, 1985 reported Rainbow Trout2,5004 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1984 1 record
1984 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 9, 1984 reported Rainbow Trout6,0094 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1983 1 record
1983 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 7, 1983 reported Rainbow Trout6,0214 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1982 1 record
1982 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 23, 1982 reported Rainbow Trout6,0025 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1981 1 record
1981 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 10, 1981 reported Rainbow Trout6,0005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1980 1 record
1980 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 22, 1980 reported Rainbow Trout8,0523 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1979 1 record
1979 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 19, 1979 reported Rainbow Trout8,3235 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1978 1 record
1978 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 15, 1978 reported Rainbow Trout7,1054 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1977 1 record
1977 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 31, 1977 reported Rainbow Trout6,5005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1976 1 record
1976 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 11, 1976 reported Rainbow Trout6,1606 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1975 1 record
1975 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 10, 1975 reported Rainbow Trout6,1504 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1974 1 record
1974 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 26, 1974 reported Rainbow Trout6,2408 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1972 1 record
1972 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 13, 1972 reported Rainbow Trout6,2405 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1971 1 record
1971 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 27, 1971 reported Rainbow Trout6,5005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1970 1 record
1970 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 3, 1970 reported Rainbow Trout5,6003 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1969 1 record
1969 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 27, 1969 reported Rainbow Trout5,9803 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1968 1 record
1968 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 16, 1968 reported Rainbow Trout5,9503 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1967 1 record
1967 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 24, 1967 reported Rainbow Trout6,0004 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1966 1 record
1966 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 12, 1966 reported Rainbow Trout6,0004 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1965 1 record
1965 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 7, 1965 reported Rainbow Trout6,0064 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1964 1 record
1964 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 8, 1964 reported Rainbow Trout6,5505 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1947 1 record
1947 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 10, 1947 reported Rainbow Trout1,0002 in avg Giant 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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