Montana stocking report
Big Reservoir
Last reported stocking
The latest reported stocking at Big Reservoir was on May 17, 2025: 2,500 Rainbow Trout (3.17 in avg).
Record last checked: . This is not a stocking date.
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.
Location map
Big Reservoir location context
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 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 waterAgency records
Stocking history
10 records from July 20, 1984 to May 17, 2025. 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.
2025 1 record
| Date / status | Species | Fish | Size | Hatchery | Source |
|---|---|---|---|---|---|
| May 17, 2025 reported | Rainbow Trout | 2,500 | 3.17 in avg | Fort Peck Hatchery | Montana Fish, Wildlife & Parks |
2024 1 record
| Date / status | Species | Fish | Size | Hatchery | Source |
|---|---|---|---|---|---|
| May 15, 2024 reported | Rainbow Trout | 2,500 | 2.92 in avg | Fort Peck Hatchery | Montana Fish, Wildlife & Parks |
2023 1 record
| Date / status | Species | Fish | Size | Hatchery | Source |
|---|---|---|---|---|---|
| May 17, 2023 reported | Rainbow Trout | 2,500 | 2.63 in avg | Fort Peck Hatchery | Montana Fish, Wildlife & Parks |
2022 1 record
| 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
| Date / status | Species | Fish | Size | Hatchery | Source |
|---|---|---|---|---|---|
| July 2, 2021 reported | Rainbow Trout | 2,500 | 3.49 in avg | Fort Peck Hatchery | Montana Fish, Wildlife & Parks |
1990 1 record
| Date / status | Species | Fish | Size | Hatchery | Source |
|---|---|---|---|---|---|
| July 1, 1990 reported | Fathead Minnow | 4,000 | 2.3000000000000003 in avg | Montana Fish, Wildlife & Parks |
1986 3 records
| Date / status | Species | Fish | Size | Hatchery | Source |
|---|---|---|---|---|---|
| May 29, 1986 reported | Black Crappie | 1,580 | 3 in avg | Montana Fish, Wildlife & Parks | |
| May 19, 1986 reported | Fathead Minnow | 700 | 2 in avg | Montana Fish, Wildlife & Parks | |
| April 10, 1986 reported | Yellow Perch | 288 | 8 in avg | Montana Fish, Wildlife & Parks |
1984 1 record
| Date / status | Species | Fish | Size | Hatchery | Source |
|---|---|---|---|---|---|
| July 20, 1984 reported | Fathead Minnow | 1,000 | 2 in avg | 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.
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