Montana stocking report
Kookoo Lake
7 records Last stocked: August 5, 2025
The short answer
Kookoo Lake was last stocked on August 5, 2025: 610 Yellowstone Cutthroat Trout (2.34 in avg).
Location map
Kookoo Lake location context
Kookoo LakeCarbon County Greenough LakeCarbon County Wild Bill LakeCarbon County Cooney ReservoirCarbon County Big Butte LakeCarbon 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
| Date | Species | Fish | Size | Hatchery |
|---|---|---|---|---|
| August 5, 2025 | Yellowstone Cutthroat Trout | 610 | 2.34 in avg | Yellowstone River Trout Hatchery |
| July 30, 2018 | Yellowstone Cutthroat Trout | 610 | 2.34 in avg | Yellowstone River Trout Hatchery |
| July 20, 2010 | Yellowstone Cutthroat Trout | 610 | 2.15 in avg | Yellowstone River Trout Hatchery |
| August 13, 2002 | Yellowstone Cutthroat Trout | 610 | 2.5 in avg | Yellowstone River Trout Hatchery |
| August 8, 1994 | Yellowstone Cutthroat Trout | 610 | 2.4 in avg | Yellowstone River Trout Hatchery |
| July 22, 1985 | Yellowstone Cutthroat Trout | 872 | 2 in avg | Big Springs Trout Hatchery |
| August 9, 1972 | Yellowstone Cutthroat Trout | 1,760 | 2 in avg | Yellowstone River 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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