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Ashton Reservoir Fishing and Stocking

Fremont 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 Apr 2, 2026. Stocked in April in two or more years.

2026 Stocking

DateSpeciesFishSize
Apr 2, 2026Rainbow Trout17,765Catchable (12-14 inches)
Apr 1, 2026Rainbow Trout17,765Catchable (12-14 inches)

2025 Stocking

DateSpeciesFishSize
Apr 23, 2025Rainbow Trout16,550Catchable (12-14 inches)
Apr 22, 2025Rainbow Trout16,550Catchable (12-14 inches)
Apr 21, 2025Rainbow Trout5,797Catchable (12-14 inches)

2024 Stocking

DateSpeciesFishSize
Apr 19, 2024Rainbow Trout2,030Catchable (12-14 inches)
Apr 16, 2024Rainbow Trout13,045Catchable (6+ inches)
Apr 15, 2024Rainbow Trout11,716Catchable (12-14 inches)

Other Stocked Waters in Fremont 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 “Ashton 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.