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Around Upper Mason Lake
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Data Source: Recreation.gov · Public land: USGS PAD-US
About this water
Upper Mason Lake is a 4 acre lake in Madison County, Montana. State records show it stocked 7 times between 2000 and 2024. The most-stocked species are westslope cutthroat trout and yellowstone cutthroat trout. 2,500 westslope cutthroat trout have gone in across 5 releases.
Stocking history
7 recorded stockings
| Date | Species | Number | Size | Hatchery |
|---|---|---|---|---|
| Sep 19, 2024 | Westslope Cutthroat Trout · Anaconda | 500 | 2.1" | Washoe Park Trout Hatchery |
| Jul 21, 2020 | Westslope Cutthroat Trout · Anaconda | 500 | 2.0" | Washoe Park Trout Hatchery |
| Jul 26, 2016 | Westslope Cutthroat Trout · Anaconda | 500 | 1.7" | Washoe Park Trout Hatchery |
| Aug 5, 2012 | Westslope Cutthroat Trout · Anaconda | 500 | 1.8" | Washoe Park Trout Hatchery |
| Jul 28, 2008 | Westslope Cutthroat Trout · Anaconda | 500 | 1.3" | Washoe Park Trout Hatchery |
| Aug 6, 2004 | Yellowstone Cutthroat Trout · McBride Lake - Big Timber | 500 | 2.3" | Yellowstone River Trout Hatchery |
| Sep 14, 2000 | Yellowstone Cutthroat Trout · McBride Lake - Big Timber | 500 | 2.5" | Yellowstone River Trout Hatchery |
Stocking records for Upper Mason Lake published by Montana Fish, Wildlife & Parks. Stocking does not guarantee fish are present. Check current regulations and access before you go. See the full Montana stocking report.
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