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About this water
Triangle Lake is a lake in Montana. State records show it stocked 11 times between 2001 and 2025. Every recorded release has been yellowstone cutthroat trout. 7,570 yellowstone cutthroat trout have gone in across 11 releases.
Stocking history
11 recorded stockings
| Date | Species | Number | Size | Hatchery |
|---|---|---|---|---|
| Aug 5, 2025 | Yellowstone Cutthroat Trout · Yellowstone Basin-Big Timber | 790 | 2.3" | Yellowstone River Trout Hatchery |
| Jul 29, 2019 | Yellowstone Cutthroat Trout · Yellowstone Basin-Big Timber | 470 | 2.7" | Yellowstone River Trout Hatchery |
| Jul 30, 2018 | Yellowstone Cutthroat Trout · Yellowstone Basin-Big Timber | 630 | 2.3" | Yellowstone River Trout Hatchery |
| Jul 24, 2017 | Yellowstone Cutthroat Trout · Yellowstone Basin-Big Timber | 790 | 2.3" | Yellowstone River Trout Hatchery |
| Aug 2, 2011 | Yellowstone Cutthroat Trout · Goose Lake | 630 | 2.2" | Yellowstone River Trout Hatchery |
| Jul 20, 2010 | Yellowstone Cutthroat Trout · Goose Lake | 630 | 2.1" | Yellowstone River Trout Hatchery |
| Jul 28, 2009 | Yellowstone Cutthroat Trout · Goose Lake | 790 | 2.0" | Yellowstone River Trout Hatchery |
| Jul 28, 2009 | Yellowstone Cutthroat Trout · Goose Lake | 790 | 2.0" | Yellowstone River Trout Hatchery |
| Aug 6, 2003 | Yellowstone Cutthroat Trout · McBride Lake - Big Timber | 630 | 2.1" | Yellowstone River Trout Hatchery |
| Aug 13, 2002 | Yellowstone Cutthroat Trout · McBride Lake - Big Timber | 630 | 2.5" | Yellowstone River Trout Hatchery |
| Aug 7, 2001 | Yellowstone Cutthroat Trout · McBride Lake - Big Timber | 790 | 2.0" | Yellowstone River Trout Hatchery |
Stocking records for Triangle 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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