Lost Valley Reservoir Fishing and Stocking
Adams County, Idaho. The Idaho Department of Fish and Game lists 2 stockings here in the latest year of its data (Rainbow Trout), the most recent on May 29, 2026. Stocked in May in two or more years.
2026 Stocking
| Date | Species | Fish | Size |
|---|---|---|---|
| May 29, 2026 | Rainbow Trout | 4,662 | Catchable (12-14 inches) |
| May 12, 2026 | Rainbow Trout | 7,022 | Catchable (12-14 inches) |
2025 Stocking
| Date | Species | Fish | Size |
|---|---|---|---|
| May 28, 2025 | Rainbow Trout | 7,079 | Catchable (12-14 inches) |
| May 27, 2025 | Rainbow Trout | 2,717 | Catchable (12-14 inches) |
2024 Stocking
| Date | Species | Fish | Size |
|---|---|---|---|
| May 23, 2024 | Rainbow Trout | 250 | Catchable (12-14 inches) |
| May 22, 2024 | Rainbow Trout | 5,005 | Catchable (12-14 inches) |
Other Stocked Waters in Adams 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 “Lost Valley Reservoir”. 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.