What species are stocked in Big Muddy Reservoir?

On record: Rainbow Trout, Largemouth Bass. Source: Montana Fish, Wildlife & Parks.

Home / Montana / Roosevelt County / Big Muddy Reservoir

Montana stocking report

Big Muddy Reservoir

49 records Last reported: May 11, 2022

Last reported stocking

The latest reported stocking at Big Muddy Reservoir was on May 11, 2022: 2,500 Rainbow Trout (3.25 in avg).

Record last checked: 2026-07-24. 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: Roosevelt
Species on record: Rainbow Trout, Largemouth Bass
Records: 49 records
Official source: Montana Fish, Wildlife & Parks report

Location map

Big Muddy Reservoir location context

Agency coordinates · access unverified

Big Muddy ReservoirAgency coordinates Knudsen Bros PondAgency coordinates Hofman ReservoirAgency coordinates Ikes Fishing PondAgency coordinates Crusch 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 Big Muddy 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

49 records from May 22, 1969 to May 11, 2022. 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.

2022 1 record

2022 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 11, 2022 reported	Rainbow Trout	2,500	3.25 in avg	Fort Peck Hatchery	Montana Fish, Wildlife & Parks

2021 1 record

2021 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 28, 2021 reported	Rainbow Trout	2,500	3.25 in avg	Fort Peck Hatchery	Montana Fish, Wildlife & Parks

2020 1 record

2020 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 12, 2020 reported	Rainbow Trout	2,500	3.21 in avg	Fort Peck Hatchery	Montana Fish, Wildlife & Parks

2019 1 record

2019 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 14, 2019 reported	Rainbow Trout	2,500	2.65 in avg	Fort Peck Hatchery	Montana Fish, Wildlife & Parks

2018 1 record

2018 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 4, 2018 reported	Rainbow Trout	2,500	2.48 in avg	Fort Peck Hatchery	Montana Fish, Wildlife & Parks

2017 1 record

2017 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 14, 2017 reported	Rainbow Trout	2,500	2.02 in avg	Fort Peck Hatchery	Montana Fish, Wildlife & Parks

2016 1 record

2016 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 8, 2016 reported	Rainbow Trout	2,500	2.09 in avg	Fort Peck Hatchery	Montana Fish, Wildlife & Parks

2015 1 record

2015 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 17, 2015 reported	Rainbow Trout	2,500	2.07 in avg	Fort Peck Hatchery	Montana Fish, Wildlife & Parks

2014 1 record

2014 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 17, 2014 reported	Rainbow Trout	2,500	2.08 in avg	Fort Peck Hatchery	Montana Fish, Wildlife & Parks

2013 1 record

2013 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
June 24, 2013 reported	Rainbow Trout	2,585	3.29 in avg	Fort Peck Hatchery	Montana Fish, Wildlife & Parks

2012 1 record

2012 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 14, 2012 reported	Rainbow Trout	2,500	2.71 in avg	Fort Peck Hatchery	Montana Fish, Wildlife & Parks

2011 1 record

2011 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
June 6, 2011 reported	Rainbow Trout	2,502	3.38 in avg	Fort Peck Hatchery	Montana Fish, Wildlife & Parks

2010 1 record

2010 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
June 8, 2010 reported	Rainbow Trout	2,525	4.13 in avg	Fort Peck Hatchery	Montana Fish, Wildlife & Parks

2009 1 record

2009 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 22, 2009 reported	Rainbow Trout	2,530	3 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

2007 1 record

2007 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 17, 2007 reported	Rainbow Trout	2,526	3.1 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

2006 2 records

2006 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 11, 2006 reported	Largemouth Bass	2,900	2.8000000000000003 in avg	Miles City Fish Hatchery	Montana Fish, Wildlife & Parks
April 26, 2006 reported	Rainbow Trout	2,650	3.21 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

2005 1 record

2005 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 15, 2005 reported	Rainbow Trout	2,461	2.77 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

2004 1 record

2004 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
June 16, 2004 reported	Rainbow Trout	2,500	4.2 in avg	Giant Springs Trout Hatchery	Montana Fish, Wildlife & Parks

2003 1 record

2003 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 28, 2003 reported	Rainbow Trout	2,478	3.12 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

2002 1 record

2002 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 29, 2002 reported	Rainbow Trout	2,639	3.2 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

2001 1 record

2001 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 24, 2001 reported	Rainbow Trout	2,503	3 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

2000 1 record

2000 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 19, 2000 reported	Rainbow Trout	2,528	3 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1999 1 record

1999 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 15, 1999 reported	Rainbow Trout	2,550	3.4 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1998 1 record

1998 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 23, 1998 reported	Rainbow Trout	2,473	3 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1997 1 record

1997 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 28, 1997 reported	Rainbow Trout	2,524	3.3000000000000003 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1996 1 record

1996 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 26, 1996 reported	Rainbow Trout	2,619	3 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1995 1 record

1995 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 18, 1995 reported	Rainbow Trout	2,568	2.9 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1994 1 record

1994 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 3, 1994 reported	Rainbow Trout	2,550	3.4 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1989 1 record

1989 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 2, 1989 reported	Rainbow Trout	2,651	3.6 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1988 1 record

1988 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 7, 1988 reported	Rainbow Trout	1,779	3.4 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1987 1 record

1987 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 14, 1987 reported	Rainbow Trout	2,460	3.3000000000000003 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1986 1 record

1986 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 27, 1986 reported	Rainbow Trout	2,499	4 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1985 1 record

1985 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 4, 1985 reported	Rainbow Trout	2,002	4 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1984 1 record

1984 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 10, 1984 reported	Rainbow Trout	2,511	4 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1983 1 record

1983 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 3, 1983 reported	Rainbow Trout	2,513	4 in avg	Big Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1982 1 record

1982 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 13, 1982 reported	Rainbow Trout	3,000	3 in avg	Miles City - Federal	Montana Fish, Wildlife & Parks

1980 1 record

1980 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 5, 1980 reported	Rainbow Trout	3,000	2 in avg	Miles City - Federal	Montana Fish, Wildlife & Parks

1979 1 record

1979 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 23, 1979 reported	Rainbow Trout	3,500	3 in avg	Miles City - Federal	Montana Fish, Wildlife & Parks

1978 1 record

1978 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 26, 1978 reported	Rainbow Trout	3,000	2 in avg	Miles City - Federal	Montana Fish, Wildlife & Parks

1977 1 record

1977 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 18, 1977 reported	Rainbow Trout	3,500	3 in avg	Miles City - Federal	Montana Fish, Wildlife & Parks

1976 1 record

1976 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 6, 1976 reported	Rainbow Trout	3,500	4 in avg	Miles City - Federal	Montana Fish, Wildlife & Parks

1975 1 record

1975 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 27, 1975 reported	Rainbow Trout	3,500	4 in avg	Miles City - Federal	Montana Fish, Wildlife & Parks

1974 1 record

1974 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
June 25, 1974 reported	Rainbow Trout	3,500	5 in avg	Miles City - Federal	Montana Fish, Wildlife & Parks

1973 1 record

1973 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
April 5, 1973 reported	Rainbow Trout	3,000	2 in avg	Miles City - Federal	Montana Fish, Wildlife & Parks

1972 1 record

1972 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 15, 1972 reported	Rainbow Trout	2,500	3 in avg	Miles City - Federal	Montana Fish, Wildlife & Parks

1971 1 record

1971 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
June 17, 1971 reported	Rainbow Trout	2,500	3 in avg	Miles City - Federal	Montana Fish, Wildlife & Parks

1970 1 record

1970 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 19, 1970 reported	Rainbow Trout	2,500	3 in avg	Miles City - Federal	Montana Fish, Wildlife & Parks

1969 1 record

1969 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
May 22, 1969 reported	Rainbow Trout	2,300	4 in avg	Miles City - Federal	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 2026-07-24. This check date is not a stocking date.

Alert me about Big Muddy Reservoir