MT
Castle Lake
About this water
Castle Lake is a lake in Montana. State records show it stocked 18 times between 2001 and 2025. The most-stocked species are westslope cutthroat trout and yellowstone cutthroat trout. 12,990 westslope cutthroat trout have gone in across 17 releases.
Stocking history
18 recorded stockings
| Date | Species | Number | Size | Hatchery |
|---|---|---|---|---|
| Sep 17, 2025 | Westslope Cutthroat Trout · Anaconda | 300 | 12.5" | Washoe Park Trout Hatchery |
| Jul 27, 2023 | Westslope Cutthroat Trout · Anaconda | 500 | 1.8" | Washoe Park Trout Hatchery |
| Jul 20, 2022 | Westslope Cutthroat Trout · Anaconda | 1,506 | 1.3" | Flathead Lake Salmon Hatchery |
| Jul 28, 2021 | Westslope Cutthroat Trout · Anaconda | 500 | 2.0" | Washoe Park Trout Hatchery |
| Jul 30, 2019 | Westslope Cutthroat Trout · Anaconda | 500 | 1.9" | Washoe Park Trout Hatchery |
| Jul 20, 2019 | Westslope Cutthroat Trout · Anaconda | 1,500 | 1.2" | Flathead Lake Salmon Hatchery |
| Jul 25, 2017 | Westslope Cutthroat Trout · Anaconda | 500 | 1.7" | Washoe Park Trout Hatchery |
| Aug 24, 2016 | Westslope Cutthroat Trout · Anaconda | 94 | 2.2" | Flathead Lake Salmon Hatchery |
| Jul 29, 2015 | Westslope Cutthroat Trout · Anaconda | 500 | 1.8" | Washoe Park Trout Hatchery |
| Jul 30, 2013 | Westslope Cutthroat Trout · Anaconda | 499 | 1.9" | Washoe Park Trout Hatchery |
| Jul 30, 2013 | Westslope Cutthroat Trout · Anaconda | 499 | 1.9" | — |
| Aug 10, 2011 | Westslope Cutthroat Trout · Anaconda | 500 | 1.8" | Washoe Park Trout Hatchery |
Showing the 12 most recent of 18. Stocking records for Castle 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.


