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About this water
Nilan Reservoir is a 521 acre reservoir in Lewis and Clark County, Montana. State records show it stocked 97 times between 2000 and 2026. The most-stocked species are rainbow trout, brook trout and brown trout. 2,417,977 rainbow trout have gone in across 94 releases.
Stocking history
97 recorded stockings
| Date | Species | Number | Size | Hatchery |
|---|---|---|---|---|
| May 26, 2026 | Rainbow Trout · Eagle Lake | 40,000 | 3.2" | Giant Springs Trout Hatchery |
| Jun 5, 2025 | Rainbow Trout · Arlee | 20,000 | 5.7" | Giant Springs Trout Hatchery |
| Jun 5, 2025 | Rainbow Trout · Eagle Lake | 20,000 | 3.4" | Giant Springs Trout Hatchery |
| Jun 19, 2024 | Rainbow Trout · Eagle Lake | 20,640 | 4.1" | Giant Springs Trout Hatchery |
| Jun 12, 2024 | Rainbow Trout · Arlee | 20,000 | 5.2" | Giant Springs Trout Hatchery |
| Jun 12, 2024 | Rainbow Trout · Arlee | 20,000 | 5.7" | Giant Springs Trout Hatchery |
| Jun 28, 2023 | Rainbow Trout · Eagle Lake | 42,631 | 3.5" | Giant Springs Trout Hatchery |
| Jun 27, 2023 | Rainbow Trout · Arlee | 250 | 10.0" | — |
| Jun 14, 2023 | Rainbow Trout · Arlee | 21,231 | 5.5" | Giant Springs Trout Hatchery |
| Jun 14, 2023 | Rainbow Trout · Arlee | 20,000 | 5.6" | Giant Springs Trout Hatchery |
| Jul 7, 2022 | Rainbow Trout · Eagle Lake | 20,000 | 3.7" | Giant Springs Trout Hatchery |
| May 25, 2022 | Rainbow Trout · Arlee | 26,251 | 5.1" | Giant Springs Trout Hatchery |
Showing the 12 most recent of 97. Stocking records for Nilan 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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