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North Fork Big Lost River Fishing and Stocking

Custer County, Idaho. The Idaho Department of Fish and Game lists 5 stockings here in the latest year of its data (Cutthroat Trout - Yellowstone), the most recent on Jul 29, 2026. Stocked in June, July and August in two or more years.

2026 Stocking

DateSpeciesFishSize
Jul 29, 2026Cutthroat Trout - Yellowstone1,137Catchable (6+ inches)
Jul 22, 2026Cutthroat Trout - Yellowstone1,200Catchable (6+ inches)
Jul 8, 2026Cutthroat Trout - Yellowstone349Catchable (6+ inches)
Jun 23, 2026Cutthroat Trout - Yellowstone318Catchable (6+ inches)
Jun 3, 2026Cutthroat Trout - Yellowstone353Catchable (12-14 inches)

2025 Stocking

DateSpeciesFishSize
Aug 19, 2025Cutthroat Trout - Yellowstone642Catchable (6+ inches)
Aug 5, 2025Cutthroat Trout - Yellowstone670Catchable (6+ inches)
Jul 23, 2025Cutthroat Trout - Yellowstone1,224Catchable (6+ inches)
Jul 10, 2025Cutthroat Trout - Yellowstone378Catchable (6+ inches)
Jun 18, 2025Cutthroat Trout - Yellowstone347Catchable (6+ inches)
Jun 2, 2025Cutthroat Trout - Yellowstone435Catchable (6+ inches)
May 29, 2025Cutthroat Trout - Yellowstone2,176Catchable (6+ inches)

2024 Stocking

DateSpeciesFishSize
Oct 10, 2024Cutthroat Trout - Yellowstone3,678Catchable (6+ inches)
Sep 25, 2024Golden Trout146Fingerling (3-6 inches)
Aug 20, 2024Cutthroat Trout - Yellowstone302Catchable (6+ inches)
Aug 5, 2024Cutthroat Trout - Yellowstone1,254Catchable (6+ inches)
Jul 17, 2024Cutthroat Trout - Yellowstone1,213Catchable (6+ inches)
Jun 27, 2024Cutthroat Trout - Yellowstone353Catchable (12-14 inches)
Jun 4, 2024Cutthroat Trout - Yellowstone358Catchable (12-14 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 “North 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.