StockerTroutFishing

Home / Montana / Lewis and Clark County / Nilan Reservoir

Montana stocking report

Nilan Reservoir

224 records Last reported: May 26, 2026

Last reported stocking

The latest reported stocking at Nilan Reservoir was on May 26, 2026: 40,000 Rainbow Trout (3.17 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
Lewis and Clark
Species on record
Rainbow Trout, Brown Trout, Brook Trout, Cutthroat Trout
Records
224 records
Official source
Montana Fish, Wildlife & Parks report

Location map

Nilan 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 Nilan Reservoir, Lewis and Clark County Nilan Reservoir Willow Creek Reservoir, Lewis and Clark County Willow Creek 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 Sock Lake, Lewis and Clark County Sock Lake Lewis and Clark County
Nilan ReservoirAgency coordinates Willow Creek ReservoirAgency coordinates Wood LakeAgency coordinates Helena Valley Regulating ReservoirAgency coordinates Spring Meadow 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.

Before you go

Plan a trip to Nilan 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.

Get stocking alerts for this water

Agency records

Stocking history

224 records from October 1, 1951 to May 26, 2026. 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.

2026 1 record
2026 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 26, 2026 reported Rainbow Trout40,0003.17 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2025 2 records
2025 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 5, 2025 reported Rainbow Trout20,0003.39 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 5, 2025 reported Rainbow Trout20,0005.73 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2024 3 records
2024 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 19, 2024 reported Rainbow Trout20,6404.12 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 12, 2024 reported Rainbow Trout20,0005.69 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 12, 2024 reported Rainbow Trout20,0005.18 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2023 4 records
2023 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 28, 2023 reported Rainbow Trout42,6313.49 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 27, 2023 reported Rainbow Trout25010 in avg Montana Fish, Wildlife & Parks
June 14, 2023 reported Rainbow Trout21,2315.54 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 14, 2023 reported Rainbow Trout20,0005.64 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2022 3 records
2022 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 7, 2022 reported Rainbow Trout20,0003.71 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 25, 2022 reported Rainbow Trout26,2515.13 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 25, 2022 reported Rainbow Trout24,8655.11 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2021 4 records
2021 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 1, 2021 reported Rainbow Trout7,8243.54 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 22, 2021 reported Rainbow Trout36,9683.83 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 8, 2021 reported Rainbow Trout15,9034.94 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 8, 2021 reported Rainbow Trout23,2985.4 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2020 3 records
2020 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 18, 2020 reported Rainbow Trout20,0003.84 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 18, 2020 reported Rainbow Trout40,0003.66 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 18, 2020 reported Rainbow Trout20,1754.42 in avg Bluewater Springs Trout Hatchery Montana Fish, Wildlife & Parks
2019 3 records
2019 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 6, 2019 reported Rainbow Trout9,9724.12 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 18, 2019 reported Rainbow Trout42,3983.85 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 13, 2019 reported Rainbow Trout40,0004.84 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2018 5 records
2018 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 11, 2018 reported Rainbow Trout8,9975.08 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 2, 2018 reported Rainbow Trout7,7293.75 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 14, 2018 reported Rainbow Trout40,0003.2 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 14, 2018 reported Rainbow Trout19,3364.83 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 12, 2018 reported Rainbow Trout21,1645.04 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2017 7 records
2017 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 27, 2017 reported Rainbow Trout29,6105.34 in avg Jocko River Trout Hatchery Montana Fish, Wildlife & Parks
September 21, 2017 reported Rainbow Trout10,4754.9 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 22, 2017 reported Rainbow Trout39,0163.6 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 14, 2017 reported Rainbow Trout12,3946.2 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 14, 2017 reported Rainbow Trout17,7056.2 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 13, 2017 reported Rainbow Trout5,0006.2 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 3, 2017 reported Rainbow Trout23,9972.77 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
2016 3 records
2016 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 21, 2016 reported Rainbow Trout10,7514.59 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 14, 2016 reported Rainbow Trout43,9692.3000000000000003 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 14, 2016 reported Brown Trout9984.34 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
2015 7 records
2015 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 25, 2015 reported Brook Trout5,7723.5 in avg Flathead Lake Salmon Hatchery Montana Fish, Wildlife & Parks
September 24, 2015 reported Rainbow Trout4,0045.03 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 11, 2015 reported Rainbow Trout10,2625.4 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 11, 2015 reported Rainbow Trout40,1043.61 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 10, 2015 reported Rainbow Trout29,7525.25 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 27, 2015 reported Rainbow Trout10,6001.9000000000000001 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 27, 2015 reported Rainbow Trout15,2002.36 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
2014 5 records
2014 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
October 9, 2014 reported Rainbow Trout1,9177.2 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 19, 2014 reported Rainbow Trout44,0003.8000000000000003 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 17, 2014 reported Rainbow Trout9,5375.22 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 17, 2014 reported Rainbow Trout30,9245.71 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 29, 2014 reported Rainbow Trout7,6963.04 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
2013 5 records
2013 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 12, 2013 reported Rainbow Trout40,0003.85 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 12, 2013 reported Rainbow Trout14,6785.6000000000000005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 12, 2013 reported Rainbow Trout20,4652.77 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 12, 2013 reported Rainbow Trout5,9973.13 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 5, 2013 reported Rainbow Trout26,1535.5200000000000005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2012 6 records
2012 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 25, 2012 reported Rainbow Trout28,5763.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 24, 2012 reported Brook Trout12,9254.7 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 22, 2012 reported Rainbow Trout5,0003.5 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 14, 2012 reported Rainbow Trout5,6805.3 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 6, 2012 reported Rainbow Trout34,3205 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 6, 2012 reported Rainbow Trout40,0002.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2011 5 records
2011 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 21, 2011 reported Rainbow Trout4,5305.12 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 6, 2011 reported Rainbow Trout25,6803.7 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 23, 2011 reported Rainbow Trout30,3663.3000000000000003 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 15, 2011 reported Rainbow Trout40,0003.1 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 17, 2011 reported Rainbow Trout40,1944.7 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
2010 3 records
2010 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 22, 2010 reported Rainbow Trout18,0005.6000000000000005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 10, 2010 reported Rainbow Trout40,8324.4 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 8, 2010 reported Rainbow Trout40,0003.1 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2009 4 records
2009 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 9, 2009 reported Rainbow Trout40,0004 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 18, 2009 reported Rainbow Trout43,0604 in avg Jocko River Trout Hatchery Montana Fish, Wildlife & Parks
June 11, 2009 reported Rainbow Trout29,5934 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 27, 2009 reported Rainbow Trout11,1245 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2008 4 records
2008 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 3, 2008 reported Rainbow Trout43,1603.5 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 25, 2008 reported Rainbow Trout43,6483.5 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 28, 2008 reported Rainbow Trout5,1073.0300000000000002 in avg Jocko River Trout Hatchery Montana Fish, Wildlife & Parks
May 28, 2008 reported Rainbow Trout34,9173.5100000000000002 in avg Jocko River Trout Hatchery Montana Fish, Wildlife & Parks
2007 2 records
2007 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 17, 2007 reported Rainbow Trout40,0004.7 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 11, 2007 reported Rainbow Trout40,8783.56 in avg Jocko River Trout Hatchery Montana Fish, Wildlife & Parks
2006 3 records
2006 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
October 27, 2006 reported Rainbow Trout14,2103.13 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 26, 2006 reported Rainbow Trout40,0003.8200000000000003 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 16, 2006 reported Rainbow Trout41,2194.4 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2005 5 records
2005 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 6, 2005 reported Rainbow Trout4,0005.2 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 7, 2005 reported Rainbow Trout17,3185.8 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 6, 2005 reported Rainbow Trout18,9595.6000000000000005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 15, 2005 reported Rainbow Trout14.64 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 15, 2005 reported Rainbow Trout40,0004.55 in avg Ennis National Fish Hatchery Montana Fish, Wildlife & Parks
2004 2 records
2004 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 29, 2004 reported Rainbow Trout42,5923.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 2, 2004 reported Rainbow Trout39,9963.98 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2003 2 records
2003 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 22, 2003 reported Rainbow Trout39,0544.4 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 13, 2003 reported Rainbow Trout39,9904.1 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2002 2 records
2002 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 24, 2002 reported Rainbow Trout40,4094.3 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 15, 2002 reported Rainbow Trout40,5244.3 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2001 2 records
2001 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 26, 2001 reported Rainbow Trout39,7603.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 15, 2001 reported Rainbow Trout39,2834.4 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
2000 2 records
2000 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 10, 2000 reported Rainbow Trout40,1592.6 in avg Creston National Fish Hatchery Montana Fish, Wildlife & Parks
May 2, 2000 reported Rainbow Trout42,0003.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1999 3 records
1999 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 6, 1999 reported Rainbow Trout41,6723.6 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 7, 1999 reported Rainbow Trout5,0004.3 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 4, 1999 reported Rainbow Trout35,0063.8000000000000003 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1998 2 records
1998 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 21, 1998 reported Rainbow Trout40,3783.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 12, 1998 reported Rainbow Trout43,6123.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1997 2 records
1997 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 8, 1997 reported Rainbow Trout40,9463.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 6, 1997 reported Rainbow Trout39,9854.1 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1996 4 records
1996 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 8, 1996 reported Rainbow Trout15,0003.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 1, 1996 reported Rainbow Trout25,0562.9 in avg Murray Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 16, 1996 reported Rainbow Trout19,7824.5 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 30, 1996 reported Rainbow Trout20,2224 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1995 2 records
1995 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 17, 1995 reported Rainbow Trout38,7554.2 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 2, 1995 reported Rainbow Trout43,3624.1 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1994 2 records
1994 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 5, 1994 reported Rainbow Trout42,0004 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 5, 1994 reported Rainbow Trout42,0904.1 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1993 3 records
1993 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 6, 1993 reported Rainbow Trout38,4983.7 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 13, 1993 reported Rainbow Trout8,4803.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 13, 1993 reported Rainbow Trout34,6954.6000000000000005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1992 2 records
1992 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 22, 1992 reported Rainbow Trout30,3024.5 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 21, 1992 reported Rainbow Trout44,4804.5 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1991 2 records
1991 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 2, 1991 reported Rainbow Trout38,4404.3 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 23, 1991 reported Rainbow Trout37,2004.3 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1990 2 records
1990 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 4, 1990 reported Rainbow Trout35,0263.7 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 3, 1990 reported Rainbow Trout40,1373.7 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1989 3 records
1989 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 17, 1989 reported Rainbow Trout25,4825.3 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 16, 1989 reported Rainbow Trout26,3045.3 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 16, 1989 reported Rainbow Trout24,6605.3 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1988 4 records
1988 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 11, 1988 reported Rainbow Trout21,9805.4 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 29, 1988 reported Rainbow Trout23,5754.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 28, 1988 reported Rainbow Trout25,1134.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 28, 1988 reported Rainbow Trout27,6754.9 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1987 2 records
1987 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 28, 1987 reported Rainbow Trout37,5004.6000000000000005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 27, 1987 reported Rainbow Trout37,5004.6000000000000005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1986 4 records
1986 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 8, 1986 reported Rainbow Trout21,5605 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 7, 1986 reported Rainbow Trout21,5605 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 6, 1986 reported Rainbow Trout16,9405 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 6, 1986 reported Rainbow Trout15,4005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1985 2 records
1985 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 15, 1985 reported Rainbow Trout39,2904 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 15, 1985 reported Rainbow Trout39,2904 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1984 4 records
1984 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 3, 1984 reported Rainbow Trout13,4205 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 25, 1984 reported Rainbow Trout21,7505 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 25, 1984 reported Rainbow Trout20,3005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 24, 1984 reported Rainbow Trout21,0255 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1983 2 records
1983 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 14, 1983 reported Rainbow Trout38,1224 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 14, 1983 reported Rainbow Trout38,1224 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1982 3 records
1982 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 25, 1982 reported Rainbow Trout25,4155 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 21, 1982 reported Rainbow Trout25,5205 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 18, 1982 reported Rainbow Trout25,0105 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1981 2 records
1981 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 18, 1981 reported Rainbow Trout20,9005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 14, 1981 reported Rainbow Trout20,9005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1980 3 records
1980 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 7, 1980 reported Rainbow Trout25,6005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 7, 1980 reported Rainbow Trout25,6005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 6, 1980 reported Rainbow Trout25,6005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1979 4 records
1979 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 1, 1979 reported Rainbow Trout25,7045 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 1, 1979 reported Rainbow Trout24,4235 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 22, 1979 reported Rainbow Trout25,0563 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 21, 1979 reported Rainbow Trout25,0563 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1978 3 records
1978 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 11, 1978 reported Rainbow Trout62,4004 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 14, 1978 reported Rainbow Trout24,9774 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 12, 1978 reported Rainbow Trout37,5005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1977 3 records
1977 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 27, 1977 reported Rainbow Trout18,7205 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 26, 1977 reported Rainbow Trout19,2005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
March 16, 1977 reported Rainbow Trout37,8005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1976 3 records
1976 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
March 30, 1976 reported Rainbow Trout26,4505 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
March 29, 1976 reported Rainbow Trout25,3005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
March 24, 1976 reported Rainbow Trout25,2454 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1975 3 records
1975 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 27, 1975 reported Rainbow Trout36,4145 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 27, 1975 reported Rainbow Trout31,2125 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 27, 1975 reported Rainbow Trout28,6115 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1974 5 records
1974 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 30, 1974 reported Rainbow Trout8,5689 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 24, 1974 reported Rainbow Trout8,9689 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 7, 1974 reported Rainbow Trout2,0705 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 8, 1974 reported Rainbow Trout23,9684 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 10, 1974 reported Rainbow Trout77,1124 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1973 4 records
1973 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 21, 1973 reported Rainbow Trout28,2005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 9, 1973 reported Rainbow Trout15,9366 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 10, 1973 reported Rainbow Trout41,9044 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 10, 1973 reported Rainbow Trout41,8304 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1972 2 records
1972 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 5, 1972 reported Rainbow Trout26,1305 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 11, 1972 reported Rainbow Trout73,7504 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1971 4 records
1971 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 13, 1971 reported Rainbow Trout30,2405 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 12, 1971 reported Rainbow Trout26,1126 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 21, 1971 reported Rainbow Trout17,0005 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 7, 1971 reported Rainbow Trout84,0004 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1970 1 record
1970 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 8, 1970 reported Rainbow Trout93,8004 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1969 2 records
1969 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 23, 1969 reported Rainbow Trout74,4804 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 23, 1969 reported Rainbow Trout49,1524 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1968 1 record
1968 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
March 5, 1968 reported Rainbow Trout147,4003 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1967 2 records
1967 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 11, 1967 reported Rainbow Trout79,6003 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 11, 1967 reported Rainbow Trout72,0003 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1966 3 records
1966 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 20, 1966 reported Rainbow Trout37,5005 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 9, 1966 reported Rainbow Trout34,0004 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 13, 1966 reported Rainbow Trout140,2403 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1965 2 records
1965 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 14, 1965 reported Rainbow Trout90,0003 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 14, 1965 reported Rainbow Trout60,0003 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1964 2 records
1964 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 27, 1964 reported Rainbow Trout54,6003 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 27, 1964 reported Rainbow Trout96,0003 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1963 3 records
1963 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 13, 1963 reported Rainbow Trout89,9203 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 8, 1963 reported Rainbow Trout59,2003 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 8, 1963 reported Rainbow Trout39,9603 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1962 1 record
1962 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 27, 1962 reported Rainbow Trout60,0004 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
1960 5 records
1960 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 20, 1960 reported Rainbow Trout20,0003 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 20, 1960 reported Rainbow Trout32,0003 in avg Big Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 12, 1960 reported Rainbow Trout12,0004 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 12, 1960 reported Rainbow Trout10,8004 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 11, 1960 reported Rainbow Trout13,9204 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1959 3 records
1959 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 21, 1959 reported Rainbow Trout36,0002 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 15, 1959 reported Rainbow Trout26,6002 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 15, 1959 reported Rainbow Trout26,6002 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1958 2 records
1958 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 25, 1958 reported Rainbow Trout25,0002 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
June 18, 1958 reported Rainbow Trout50,0002 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1957 1 record
1957 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
May 3, 1957 reported Rainbow Trout75,0402 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1956 3 records
1956 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
April 26, 1956 reported Rainbow Trout18,3002 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 24, 1956 reported Rainbow Trout38,4302 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
April 23, 1956 reported Rainbow Trout36,6002 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1955 2 records
1955 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
July 6, 1955 reported Rainbow Trout70,000 Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 5, 1955 reported Rainbow Trout10,5605 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1954 2 records
1954 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
September 22, 1954 reported Cutthroat Trout50,4002 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 7, 1954 reported Rainbow Trout35,7001 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1953 5 records
1953 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
August 25, 1953 reported Rainbow Trout8,1003 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 21, 1953 reported Brook Trout10,6003 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 20, 1953 reported Brook Trout8,4803 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 20, 1953 reported Cutthroat Trout1,6005 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
July 8, 1953 reported Rainbow Trout2,000 Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1952 2 records
1952 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
June 9, 1952 reported Rainbow Trout192,0001 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
May 14, 1952 reported Rainbow Trout2,0008 in avg Giant Springs Trout Hatchery Montana Fish, Wildlife & Parks
1951 1 record
1951 stocking records and official sources
Date / statusSpeciesFishSizeHatcherySource
October 1, 1951 reported Cutthroat Trout31,3502 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.

Alert me about Nilan Reservoir