MT
Ostle Reservoir
Around here
Around Ostle Reservoir
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this water
Ostle Reservoir is a reservoir in Montana. State records show it stocked 48 times between 2002 and 2026. The most-stocked species are rainbow trout and tiger muskie. 56,367 rainbow trout have gone in across 45 releases.
Stocking history
48 recorded stockings
| Date | Species | Number | Size | Hatchery |
|---|---|---|---|---|
| Sep 11, 2026 | Rainbow Trout · Arlee | 1 | 4.0" | Giant Springs Trout Hatchery |
| Sep 11, 2026 | Rainbow Trout · Eagle Lake | 1 | 4.0" | Giant Springs Trout Hatchery |
| Jun 26, 2025 | Rainbow Trout · Arlee | 1,000 | 6.0" | Giant Springs Trout Hatchery |
| Jun 26, 2025 | Rainbow Trout · Eagle Lake | 1,200 | 3.7" | Giant Springs Trout Hatchery |
| Jun 27, 2024 | Rainbow Trout · Eagle Lake | 1,020 | 4.0" | Big Springs Trout Hatchery |
| Jun 5, 2024 | Rainbow Trout · Arlee | 1,000 | 5.5" | Giant Springs Trout Hatchery |
| Jun 5, 2024 | Rainbow Trout · Eagle Lake | 1,000 | 3.3" | Giant Springs Trout Hatchery |
| Jun 27, 2023 | Rainbow Trout · Arlee | 1,000 | 5.7" | Giant Springs Trout Hatchery |
| Jun 27, 2023 | Rainbow Trout · Eagle Lake | 1,000 | 3.3" | Giant Springs Trout Hatchery |
| Jun 14, 2023 | Rainbow Trout · Eagle Lake | 1,000 | 3.9" | Big Springs Trout Hatchery |
| Oct 26, 2022 | Tiger Muskie (Northern X Muskie) · Nebraska | 20 | 8.4" | Miles City Fish Hatchery |
| Jun 27, 2022 | Rainbow Trout · Arlee | 1,000 | 6.1" | Giant Springs Trout Hatchery |
Showing the 12 most recent of 48. Stocking records for Ostle Reservoir 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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This water as an art print: the shoreline, the rivers that feed it and the country around it, drawn from real elevation and USGS water data. Frame it tighter or wider before you print. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
