What species are stocked in Diamond Lake?

On record: Westslope Cutthroat Trout, Yellowstone Cutthroat Trout, Rainbow Trout. Source: Montana Fish, Wildlife & Parks.

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Montana stocking report

Diamond Lake

33 records Last reported: August 6, 2024

Last reported stocking

The latest reported stocking at Diamond Lake was on August 6, 2024: 2,000 Westslope Cutthroat Trout (1.5 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.

Counties: Flathead, Madison, Mineral, Sweet Grass
Species on record: Westslope Cutthroat Trout, Yellowstone Cutthroat Trout, Rainbow Trout
Records: 33 records
Official source: Montana Fish, Wildlife & Parks report

Location map

Diamond Lake location context

Agency coordinates · access unverified

Diamond LakeAgency coordinates Beaver LakeAgency coordinates Little Beaver LakeAgency coordinates Snappys PondAgency coordinates Dollar 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.

Check the exact water: This page groups records with the same name across 4 counties. They may describe different waters or reaches; the map does not identify all of them.

Before you go

Plan a trip to Diamond Lake

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

Looking for a different Diamond Lake? Also on record: Diamond Lake (Elmore County, Idaho) · Diamond Lake (Cass County, Michigan) · Diamond Lake (Mecosta County, Michigan) · Diamond Lake (Newaygo County, Michigan) · Diamond Lake (Osceola County, Michigan)

Agency records

Stocking history

33 records from August 28, 1962 to August 6, 2024. 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.

2024 1 record

2024 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 6, 2024 reported	Westslope Cutthroat Trout	2,000	1.5 in avg	Flathead Lake Salmon Hatchery	Montana Fish, Wildlife & Parks

2022 2 records

2022 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 27, 2022 reported	Westslope Cutthroat Trout	2,000	1.69 in avg	Washoe Park Trout Hatchery	Montana Fish, Wildlife & Parks
July 27, 2022 reported	Westslope Cutthroat Trout	2,000	1.69 in avg	Washoe Park Trout Hatchery	Montana Fish, Wildlife & Parks

2021 1 record

2021 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 13, 2021 reported	Westslope Cutthroat Trout	2,000	1.4000000000000001 in avg	Flathead Lake Salmon Hatchery	Montana Fish, Wildlife & Parks

2018 1 record

2018 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 24, 2018 reported	Westslope Cutthroat Trout	2,000	1.8900000000000001 in avg	Washoe Park Trout Hatchery	Montana Fish, Wildlife & Parks

2015 1 record

2015 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 29, 2015 reported	Westslope Cutthroat Trout	2,000	1.76 in avg	Washoe Park Trout Hatchery	Montana Fish, Wildlife & Parks

2012 1 record

2012 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 8, 2012 reported	Westslope Cutthroat Trout	2,000	1 in avg	Flathead Lake Salmon Hatchery	Montana Fish, Wildlife & Parks

2011 1 record

2011 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 10, 2011 reported	Westslope Cutthroat Trout	2,000	1.8 in avg	Washoe Park Trout Hatchery	Montana Fish, Wildlife & Parks

2009 1 record

2009 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 7, 2009 reported	Westslope Cutthroat Trout	1,000	1 in avg	Flathead Lake Salmon Hatchery	Montana Fish, Wildlife & Parks

2007 1 record

2007 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 1, 2007 reported	Westslope Cutthroat Trout	2,000	1.31 in avg	Washoe Park Trout Hatchery	Montana Fish, Wildlife & Parks

2006 1 record

2006 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 26, 2006 reported	Westslope Cutthroat Trout	2,000	1.3 in avg	Murray Springs Trout Hatchery	Montana Fish, Wildlife & Parks

2003 2 records

2003 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 7, 2003 reported	Yellowstone Cutthroat Trout	2,000	2.15 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks
July 30, 2003 reported	Westslope Cutthroat Trout	2,118	1.5 in avg	Murray Springs Trout Hatchery	Montana Fish, Wildlife & Parks

2000 1 record

2000 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 24, 2000 reported	Westslope Cutthroat Trout	1,989	1.5 in avg	Murray Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1999 1 record

1999 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 3, 1999 reported	Yellowstone Cutthroat Trout	2,000	2.1 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

1997 1 record

1997 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 29, 1997 reported	Westslope Cutthroat Trout	2,058	1.6 in avg	Murray Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1995 1 record

1995 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 20, 1995 reported	Yellowstone Cutthroat Trout	2,000	1.9000000000000001 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

1994 1 record

1994 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 24, 1994 reported	Westslope Cutthroat Trout	2,463	1.4000000000000001 in avg	Murray Springs Trout Hatchery	Montana Fish, Wildlife & Parks

1991 2 records

1991 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 19, 1991 reported	Westslope Cutthroat Trout	2,000	1.1 in avg	Flathead Lake Salmon Hatchery	Montana Fish, Wildlife & Parks
August 6, 1991 reported	Yellowstone Cutthroat Trout	2,000	2 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

1987 2 records

1987 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 22, 1987 reported	Westslope Cutthroat Trout	2,024	1.8 in avg	Murray Springs Trout Hatchery	Montana Fish, Wildlife & Parks
August 12, 1987 reported	Yellowstone Cutthroat Trout	2,000	1.8 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

1983 2 records

1983 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 14, 1983 reported	Westslope Cutthroat Trout	2,000	1 in avg	Creston National Fish Hatchery	Montana Fish, Wildlife & Parks
August 2, 1983 reported	Yellowstone Cutthroat Trout	1,056	2 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

1978 1 record

1978 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 14, 1978 reported	Westslope Cutthroat Trout	2,000	1 in avg	Flathead Lake Salmon Hatchery	Montana Fish, Wildlife & Parks

1971 1 record

1971 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 24, 1971 reported	Westslope Cutthroat Trout	1,950	1 in avg	Flathead Lake Salmon Hatchery	Montana Fish, Wildlife & Parks

1970 2 records

1970 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 25, 1970 reported	Yellowstone Cutthroat Trout	582	3 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks
August 25, 1970 reported	Yellowstone Cutthroat Trout	291	3 in avg	Yellowstone River Trout Hatchery	Montana Fish, Wildlife & Parks

1966 1 record

1966 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 12, 1966 reported	Rainbow Trout	1,076	2 in avg	Jocko River Trout Hatchery	Montana Fish, Wildlife & Parks

1965 1 record

1965 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
July 13, 1965 reported	Rainbow Trout	1,000	4 in avg	Jocko River Trout Hatchery	Montana Fish, Wildlife & Parks

1964 1 record

1964 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 18, 1964 reported	Rainbow Trout	2,030	3 in avg	Jocko River Trout Hatchery	Montana Fish, Wildlife & Parks

1963 1 record

1963 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 26, 1963 reported	Rainbow Trout	1,000	2 in avg	Washoe Park Trout Hatchery	Montana Fish, Wildlife & Parks

1962 1 record

1962 stocking records and official sources
Date / status	Species	Fish	Size	Hatchery	Source
August 28, 1962 reported	Rainbow Trout	1,276	4 in avg	Jocko River 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 2026-07-24. This check date is not a stocking date.

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