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Montana stocking report

Olsen Pond

47 records Last stocked: June 4, 2026

The short answer

Olsen Pond was last stocked on June 4, 2026: 496 Rainbow Trout (4.73 in avg).

Counties
Fergus, Garfield, Prairie
Species on record
Rainbow Trout, Largemouth Bass, Crappie, Bluegill
Records
47 stocking events
Official source
Montana Fish, Wildlife & Parks report

Location map

Olsen Pond 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 Olsen Pond, Fergus County Olsen Pond Holgate Reservoir, Fergus County Holgate Reservoir Lower Frog Pond, Fergus County Lower Frog Pond Upper Frog Pond, Fergus County Upper Frog 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 Carters Pond, Fergus County Carters Pond Fergus County
Olsen PondFergus County Holgate ReservoirFergus County Lower Frog PondFergus County Upper Frog PondFergus County Upper Carters 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
June 4, 2026 Rainbow Trout 496 4.73 in avg Big Springs Trout Hatchery
June 6, 2024 Rainbow Trout 508 4.7700000000000005 in avg Big Springs Trout Hatchery
June 2, 2022 Rainbow Trout 503 4.26 in avg Big Springs Trout Hatchery
May 6, 2020 Rainbow Trout 531 3.73 in avg Big Springs Trout Hatchery
May 17, 2018 Rainbow Trout 501 4.2 in avg Big Springs Trout Hatchery
May 10, 2017 Rainbow Trout 500 4.09 in avg Big Springs Trout Hatchery
April 22, 2016 Rainbow Trout 506 4.48 in avg Big Springs Trout Hatchery
April 30, 2015 Rainbow Trout 502 4.97 in avg Big Springs Trout Hatchery
May 23, 2014 Rainbow Trout 506 4.01 in avg Big Springs Trout Hatchery
September 17, 2013 Rainbow Trout 1,016 7.58 in avg Big Springs Trout Hatchery
May 21, 2012 Rainbow Trout 1,045 4.18 in avg Big Springs Trout Hatchery
June 21, 2011 Rainbow Trout 1,007 4.74 in avg Big Springs Trout Hatchery
June 8, 2010 Rainbow Trout 1,000 4.24 in avg Big Springs Trout Hatchery
May 27, 2009 Rainbow Trout 1,007 4 in avg Big Springs Trout Hatchery
May 9, 2008 Rainbow Trout 998 3.91 in avg Big Springs Trout Hatchery
June 4, 2007 Rainbow Trout 1,001 4.0200000000000005 in avg Big Springs Trout Hatchery
June 6, 2006 Rainbow Trout 1,050 4.15 in avg Big Springs Trout Hatchery
May 24, 2005 Rainbow Trout 978 3.52 in avg Big Springs Trout Hatchery
June 16, 2004 Rainbow Trout 984 4.55 in avg Big Springs Trout Hatchery
May 28, 2003 Rainbow Trout 994 3.69 in avg Big Springs Trout Hatchery
March 26, 2003 Rainbow Trout 2,000 2.1 in avg Miles City Fish Hatchery
June 6, 2002 Rainbow Trout 998 4.2 in avg Big Springs Trout Hatchery
May 22, 2001 Rainbow Trout 996 3.8000000000000003 in avg Big Springs Trout Hatchery
June 6, 2000 Rainbow Trout 1,002 4 in avg Big Springs Trout Hatchery
May 27, 1999 Rainbow Trout 1,021 4 in avg Big Springs Trout Hatchery
April 19, 1999 Rainbow Trout 2,000 2.7 in avg Miles City Fish Hatchery
June 4, 1998 Rainbow Trout 1,026 4 in avg Big Springs Trout Hatchery
June 3, 1997 Rainbow Trout 1,050 4.1 in avg Big Springs Trout Hatchery
May 21, 1996 Rainbow Trout 1,056 5.1000000000000005 in avg Big Springs Trout Hatchery
May 3, 1995 Rainbow Trout 1,000 3.9 in avg Big Springs Trout Hatchery
May 9, 1994 Rainbow Trout 1,005 4.9 in avg Big Springs Trout Hatchery
May 3, 1993 Rainbow Trout 1,007 4.7 in avg Big Springs Trout Hatchery
May 14, 1992 Rainbow Trout 1,000 3.6 in avg Big Springs Trout Hatchery
May 7, 1991 Rainbow Trout 1,000 4.5 in avg Big Springs Trout Hatchery
May 10, 1990 Rainbow Trout 1,000 4.8 in avg Big Springs Trout Hatchery
April 19, 1989 Rainbow Trout 979 4.2 in avg Big Springs Trout Hatchery
May 4, 1988 Rainbow Trout 1,012 4.6000000000000005 in avg Big Springs Trout Hatchery
June 20, 1986 Rainbow Trout 1,046 5 in avg Big Springs Trout Hatchery
April 17, 1985 Rainbow Trout 2,013 5 in avg Big Springs Trout Hatchery
April 20, 1984 Rainbow Trout 2,001 7 in avg Big Springs Trout Hatchery
June 1, 1983 Rainbow Trout 2,523 4 in avg Big Springs Trout Hatchery
August 3, 1976 Largemouth Bass 1,500 2 in avg Miles City - Federal
August 12, 1969 Largemouth Bass 200 1 in avg Miles City - Federal
August 9, 1969 Largemouth Bass 300 1 in avg Miles City - Federal
October 24, 1946 Largemouth Bass 160 3 in avg Miles City - Federal
October 24, 1946 Crappie 400 1 in avg Miles City - Federal
September 12, 1946 Bluegill 1,600 1 in avg Miles City - Federal

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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