East Fork Big Lost River Fishing and Stocking
Custer County, Idaho. The Idaho Department of Fish and Game lists 4 stockings here in the latest year of its data (Rainbow Trout), the most recent on Aug 26, 2026. Stocked in June and July in two or more years.
2026 Stocking
| Date | Species | Fish | Size |
|---|---|---|---|
| Aug 26, 2026 | Rainbow Trout | 380 | Catchable (6+ inches) |
| Jul 8, 2026 | Rainbow Trout | 441 | Catchable (6+ inches) |
| Jun 17, 2026 | Rainbow Trout | 396 | Catchable (6+ inches) |
| Jun 3, 2026 | Rainbow Trout | 381 | Catchable (6+ inches) |
2025 Stocking
| Date | Species | Fish | Size |
|---|---|---|---|
| Jul 22, 2025 | Cutthroat Trout - Yellowstone | 408 | Catchable (6+ inches) |
| Jul 8, 2025 | Cutthroat Trout - Yellowstone | 403 | Catchable (6+ inches) |
| Jun 18, 2025 | Rainbow Trout | 414 | Catchable (6+ inches) |
| Jun 9, 2025 | Rainbow Trout | 431 | Catchable (6+ inches) |
2024 Stocking
| Date | Species | Fish | Size |
|---|---|---|---|
| Sep 24, 2024 | Brook Trout | 24,270 | Fingerling (3-6 inches) |
| Jul 22, 2024 | Rainbow Trout | 395 | Catchable (6+ inches) |
| Jul 8, 2024 | Rainbow Trout | 430 | Catchable (6+ inches) |
| Jun 21, 2024 | Rainbow Trout | 398 | Catchable (6+ inches) |
| Jun 4, 2024 | Rainbow Trout | 411 | Catchable (6+ inches) |
Other Stocked Waters in Custer County
About This Data
Every row comes from the stocking information published by the Idaho Department of Fish and Game, checked Oct 20, 2026. The agency lists this water as “East Fork Big Lost River”. Species and sizes are given as the agency names them; a dash means the agency does not say.
More for Idaho Anglers
Stocking dates and places can change without notice; check with the agency before a trip. ReelTourney is not affiliated with the Idaho Department of Fish and Game.