Upper Mason Lake - stocking report
Upper Mason Lake was last stocked on September 19, 2024: 500 Westslope Cutthroat Trout (2.09 in avg).
Full stocking history
| Date | Species | Fish | Size | Hatchery |
|---|---|---|---|---|
| September 19, 2024 | Westslope Cutthroat Trout | 500 | 2.09 in avg | Washoe Park Trout Hatchery |
| July 21, 2020 | Westslope Cutthroat Trout | 500 | 1.96 in avg | Washoe Park Trout Hatchery |
| July 26, 2016 | Westslope Cutthroat Trout | 500 | 1.68 in avg | Washoe Park Trout Hatchery |
| August 5, 2012 | Westslope Cutthroat Trout | 500 | 1.81 in avg | Washoe Park Trout Hatchery |
| July 28, 2008 | Westslope Cutthroat Trout | 500 | 1.28 in avg | Washoe Park Trout Hatchery |
| August 6, 2004 | Yellowstone Cutthroat Trout | 500 | 2.33 in avg | Yellowstone River Trout Hatchery |
| September 14, 2000 | Yellowstone Cutthroat Trout | 500 | 2.5 in avg | Yellowstone River Trout Hatchery |
| August 13, 1996 | Yellowstone Cutthroat Trout | 500 | 2.3000000000000003 in avg | Yellowstone River Trout Hatchery |
| July 30, 1992 | Yellowstone Cutthroat Trout | 500 | 1.9000000000000001 in avg | Yellowstone River Trout Hatchery |
| August 4, 1988 | Yellowstone Cutthroat Trout | 505 | 2.1 in avg | Yellowstone River Trout Hatchery |
| August 6, 1984 | Yellowstone Cutthroat Trout | 1,000 | 1 in avg | Washoe Park 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: .