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Montana stocking report

Big Casino Creek Reservoir

106 records Last stocked: August 7, 2025

The short answer

Big Casino Creek Reservoir was last stocked on August 7, 2025: 5,000 Largemouth Bass (1.56 in avg).

County
Fergus
Species on record
Largemouth Bass, Rainbow Trout, Tiger Muskellunge, Walleye
Records
106 stocking events
Official source
Montana Fish, Wildlife & Parks report

Location map

Big Casino Creek Reservoir location context

Approximate · county context
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 Big Casino Creek Reservoir, Fergus County Big Casino Creek Reservoir Holgate Reservoir, Fergus County Holgate Reservoir Lower Frog Pond, Fergus County Lower Frog Pond Upper Frog Pond, Fergus County Upper Frog Pond Olsen Pond, Fergus County Olsen Pond Upper Carters Pond, Fergus County Upper Carters Pond Carpenter Reservoir, Fergus County Carpenter Reservoir Wolf Crk Ranch Pond, Upper, Fergus County Wolf Crk Ranch Pond, Upper Elks Country Club Pond, Fergus County Elks Country Club Pond Fergus County
Big Casino Creek ReservoirFergus County Holgate ReservoirFergus County Lower Frog PondFergus County Upper Frog PondFergus County Olsen PondFergus County

Pins use the finest location published with the stocking record. County-level pins show area context, not an exact access point; confirm access and directions with the official agency source.

Agency records

Full stocking history

DateSpeciesFishSizeHatchery
August 7, 2025 Largemouth Bass 5,000 1.56 in avg Miles City Fish Hatchery
July 8, 2025 Rainbow Trout 534 9.48 in avg Big Springs Trout Hatchery
August 9, 2024 Largemouth Bass 5,000 1.35 in avg Miles City Fish Hatchery
July 22, 2023 Largemouth Bass 5,000 1.58 in avg Miles City Fish Hatchery
June 16, 2023 Rainbow Trout 1,000 10 in avg Big Springs Trout Hatchery
June 9, 2022 Rainbow Trout 600 5.84 in avg Big Springs Trout Hatchery
July 21, 2021 Largemouth Bass 5,000 1.8900000000000001 in avg Miles City Fish Hatchery
June 17, 2021 Rainbow Trout 893 8.6 in avg Big Springs Trout Hatchery
June 17, 2021 Rainbow Trout 150 12.85 in avg Big Springs Trout Hatchery
July 13, 2020 Largemouth Bass 7,000 0.8 in avg Miles City Fish Hatchery
June 29, 2020 Tiger Muskellunge 50 10.49 in avg Miles City Fish Hatchery
July 26, 2019 Largemouth Bass 5,000 1.55 in avg Miles City Fish Hatchery
June 13, 2019 Tiger Muskellunge 75 3.7 in avg Miles City Fish Hatchery
July 19, 2018 Largemouth Bass 3,000 2.02 in avg Miles City Fish Hatchery
August 8, 2017 Largemouth Bass 5,000 1.62 in avg Miles City Fish Hatchery
July 28, 2016 Largemouth Bass 5,000 1.8900000000000001 in avg Miles City Fish Hatchery
August 3, 2015 Largemouth Bass 5,000 2 in avg Miles City Fish Hatchery
June 16, 2014 Rainbow Trout 500 8.74 in avg Big Springs Trout Hatchery
May 2, 2014 Rainbow Trout 500 12.3 in avg Big Springs Trout Hatchery
September 18, 2013 Rainbow Trout 500 12.13 in avg Big Springs Trout Hatchery
May 30, 2013 Rainbow Trout 250 12.3 in avg Big Springs Trout Hatchery
May 30, 2013 Rainbow Trout 250 9.47 in avg Big Springs Trout Hatchery
May 9, 2013 Rainbow Trout 500 12.64 in avg Big Springs Trout Hatchery
October 10, 2012 Rainbow Trout 111 11.35 in avg Big Springs Trout Hatchery
September 17, 2012 Rainbow Trout 501 11.1 in avg Big Springs Trout Hatchery
June 4, 2012 Rainbow Trout 500 7.87 in avg Big Springs Trout Hatchery
April 16, 2012 Rainbow Trout 508 7 in avg Big Springs Trout Hatchery
September 21, 2011 Rainbow Trout 253 12.46 in avg Big Springs Trout Hatchery
September 6, 2011 Rainbow Trout 500 8.700000000000001 in avg Giant Springs Trout Hatchery
June 23, 2011 Rainbow Trout 998 8.370000000000001 in avg Big Springs Trout Hatchery
September 8, 2010 Rainbow Trout 501 10.14 in avg Big Springs Trout Hatchery
June 7, 2010 Rainbow Trout 502 8.1 in avg Big Springs Trout Hatchery
May 14, 2010 Rainbow Trout 503 7.96 in avg Big Springs Trout Hatchery
September 15, 2009 Rainbow Trout 498 8 in avg Big Springs Trout Hatchery
June 2, 2009 Rainbow Trout 517 8 in avg Big Springs Trout Hatchery
April 27, 2009 Rainbow Trout 511 7 in avg Big Springs Trout Hatchery
September 8, 2008 Rainbow Trout 502 10.06 in avg Big Springs Trout Hatchery
June 26, 2008 Rainbow Trout 500 8.41 in avg Big Springs Trout Hatchery
May 13, 2008 Rainbow Trout 501 7.97 in avg Big Springs Trout Hatchery
September 20, 2007 Rainbow Trout 1,352 7.51 in avg Big Springs Trout Hatchery
June 4, 2007 Rainbow Trout 500 8.3 in avg Big Springs Trout Hatchery
October 2, 2006 Rainbow Trout 1,496 8.07 in avg Big Springs Trout Hatchery
June 7, 2006 Walleye 5,000 1 in avg Miles City Fish Hatchery
May 3, 2006 Rainbow Trout 1,504 8.47 in avg Big Springs Trout Hatchery
April 11, 2006 Rainbow Trout 3,009 5.96 in avg Big Springs Trout Hatchery
October 20, 2005 Rainbow Trout 850 6.42 in avg Big Springs Trout Hatchery
June 14, 2005 Walleye 4,000 1.3 in avg Miles City Fish Hatchery
June 1, 2005 Rainbow Trout 1,500 11 in avg Jocko River Trout Hatchery
April 13, 2005 Rainbow Trout 1,511 6.86 in avg Big Springs Trout Hatchery
June 28, 2004 Rainbow Trout 496 7.390000000000001 in avg Big Springs Trout Hatchery
June 28, 2004 Rainbow Trout 516 8.34 in avg Big Springs Trout Hatchery
May 26, 2004 Rainbow Trout 575 7.58 in avg Bluewater Springs Trout Hatchery
May 26, 2004 Rainbow Trout 1 5.7 in avg Big Springs Trout Hatchery
July 2, 2003 Rainbow Trout 500 8.77 in avg Big Springs Trout Hatchery
June 25, 2003 Rainbow Trout 999 8.77 in avg Big Springs Trout Hatchery
June 16, 2003 Walleye 4,000 1.2 in avg Miles City Fish Hatchery
May 30, 2003 Rainbow Trout 515 7.99 in avg Big Springs Trout Hatchery
May 14, 2003 Rainbow Trout 506 8.4 in avg Big Springs Trout Hatchery
April 23, 2003 Rainbow Trout 507 6.73 in avg Big Springs Trout Hatchery
July 9, 2002 Walleye 2,000 1.4000000000000001 in avg Miles City Fish Hatchery
July 2, 2002 Rainbow Trout 495 7.2 in avg Big Springs Trout Hatchery
July 2, 2002 Rainbow Trout 500 8.5 in avg Big Springs Trout Hatchery
June 12, 2002 Rainbow Trout 505 6.3 in avg Big Springs Trout Hatchery
June 12, 2002 Rainbow Trout 520 7.8 in avg Big Springs Trout Hatchery
May 20, 2002 Rainbow Trout 532 5.7 in avg Big Springs Trout Hatchery
July 25, 2001 Rainbow Trout 537 9.4 in avg Big Springs Trout Hatchery
July 5, 2001 Rainbow Trout 504 7 in avg Big Springs Trout Hatchery
June 11, 2001 Walleye 2,000 1.2 in avg Miles City Fish Hatchery
June 7, 2001 Rainbow Trout 500 8.6 in avg Big Springs Trout Hatchery
June 7, 2001 Rainbow Trout 495 8.1 in avg Big Springs Trout Hatchery
May 25, 2001 Rainbow Trout 500 7.8 in avg Big Springs Trout Hatchery
July 11, 2000 Rainbow Trout 1,000 8.6 in avg Big Springs Trout Hatchery
June 19, 2000 Rainbow Trout 502 8.1 in avg Big Springs Trout Hatchery
June 14, 2000 Walleye 2,000 1.2 in avg Miles City Fish Hatchery
May 3, 2000 Rainbow Trout 504 7 in avg Big Springs Trout Hatchery
May 3, 2000 Rainbow Trout 473 5.8 in avg Big Springs Trout Hatchery
July 9, 1999 Rainbow Trout 540 7.5 in avg Big Springs Trout Hatchery
July 9, 1999 Rainbow Trout 506 9 in avg Big Springs Trout Hatchery
June 1, 1999 Rainbow Trout 504 6.5 in avg Big Springs Trout Hatchery
June 1, 1999 Rainbow Trout 490 8.9 in avg Big Springs Trout Hatchery
May 15, 1999 Walleye 2,000 1.2 in avg Miles City Fish Hatchery
May 13, 1999 Rainbow Trout 511 5.5 in avg Big Springs Trout Hatchery
May 13, 1999 Rainbow Trout 518 8.2 in avg Big Springs Trout Hatchery
September 18, 1998 Rainbow Trout 1,018 8.6 in avg Big Springs Trout Hatchery
June 26, 1998 Rainbow Trout 505 7.9 in avg Big Springs Trout Hatchery
June 25, 1998 Walleye 2,000 1.4000000000000001 in avg Miles City Fish Hatchery
May 14, 1998 Rainbow Trout 3,542 6.8 in avg Big Springs Trout Hatchery
May 7, 1998 Rainbow Trout 498 7.2 in avg Big Springs Trout Hatchery
September 11, 1997 Walleye 500 3.1 in avg Miles City Fish Hatchery
August 26, 1997 Rainbow Trout 500 9.8 in avg Big Springs Trout Hatchery
July 7, 1997 Rainbow Trout 1,000 8.3 in avg Big Springs Trout Hatchery
June 25, 1997 Walleye 2,012 1.6 in avg Miles City Fish Hatchery
June 2, 1997 Rainbow Trout 1,100 6.9 in avg Big Springs Trout Hatchery
May 27, 1997 Rainbow Trout 2,125 3.1 in avg Big Springs Trout Hatchery
May 6, 1997 Rainbow Trout 1,032 7.3 in avg Big Springs Trout Hatchery
July 15, 1996 Rainbow Trout 500 9.6 in avg Big Springs Trout Hatchery
June 3, 1996 Rainbow Trout 500 8.6 in avg Big Springs Trout Hatchery
May 20, 1996 Rainbow Trout 540 8 in avg Big Springs Trout Hatchery
April 18, 1996 Rainbow Trout 520 6.6000000000000005 in avg Big Springs Trout Hatchery
July 6, 1995 Rainbow Trout 400 10.4 in avg Big Springs Trout Hatchery
May 22, 1995 Rainbow Trout 408 8.8 in avg Big Springs Trout Hatchery
May 22, 1995 Rainbow Trout 5,240 4.5 in avg Big Springs Trout Hatchery
May 2, 1994 Rainbow Trout 5,110 4.3 in avg Big Springs Trout Hatchery
June 10, 1993 Rainbow Trout 4,998 4.4 in avg Big Springs Trout Hatchery
May 15, 1992 Rainbow Trout 4,998 4.6000000000000005 in avg Big Springs Trout Hatchery
June 10, 1991 Rainbow Trout 3,006 8.6 in avg Big Springs Trout Hatchery

Records shown exactly as published by Montana Fish, Wildlife & Parks. An event missing here does not mean the water was not stocked - some plants go unreported or are published elsewhere.

Data source: Montana Fish, Wildlife & Parks. Last updated: .

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