MT
Castle Rock Reservoir
Around here
Around Castle Rock Reservoir
Data Source: Recreation.gov · Public land: USGS PAD-US
About this water
Castle Rock Reservoir is a reservoir in Montana. State records show it stocked 35 times between 2000 and 2026. The most-stocked species are walleye, channel catfish and smallmouth bass. 28,149 walleye have gone in across 27 releases.
Stocking history
35 recorded stockings
| Date | Species | Number | Size | Hatchery |
|---|---|---|---|---|
| Jun 16, 2026 | Walleye · Fort Peck | 1,000 | 1.6" | Miles City Fish Hatchery |
| Jun 19, 2025 | Walleye · Fort Peck | 1,000 | 1.3" | Miles City Fish Hatchery |
| Jun 11, 2024 | Walleye · Fort Peck | 1,000 | 1.4" | Miles City Fish Hatchery |
| Jul 12, 2023 | Walleye · Fort Peck | 1,000 | 2.0" | Miles City Fish Hatchery |
| Jun 15, 2022 | Walleye · Fort Peck | 1,000 | 1.1" | Miles City Fish Hatchery |
| Sep 30, 2021 | Channel Catfish · Montana | 8,227 | 1.6" | Miles City Fish Hatchery |
| Aug 20, 2021 | Channel Catfish · Montana | 1,000 | 1.7" | Miles City Fish Hatchery |
| Jun 28, 2021 | Walleye · Fort Peck | 1,000 | 1.8" | Miles City Fish Hatchery |
| Aug 19, 2020 | Channel Catfish · Montana | 1,000 | 1.6" | Miles City Fish Hatchery |
| Jun 10, 2020 | Walleye · Fort Peck | 2,000 | 2.8" | Miles City Fish Hatchery |
| Jun 19, 2019 | Walleye · Fort Peck | 1,000 | 1.6" | Miles City Fish Hatchery |
| Aug 3, 2018 | Smallmouth Bass · Miles City | 4,000 | 2.2" | Miles City Fish Hatchery |
Showing the 12 most recent of 35. Stocking records for Castle Rock 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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