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Idaho Fish and Game

Fishing on the South Fork of the Snake River

South Fork Snake River Fishery

The South Fork of the Snake River provides outstanding angling opportunity, making it one of the most popular fisheries in Idaho.

Yellowstone Cutthroat Trout

The South Fork Snake River in eastern Idaho supports the largest river population of native Yellowstone cutthroat trout in Idaho as well as other popular game fish including Rainbow trout and Brown trout. The exceptional trout population and scenic beauty of the South Fork make it one of the finest fisheries in the country. Anglers are encouraged to harvest all rainbow trout they encounter here, as they can compete with native cutthroat.

Identify your catch!

Current South Fork Snake River rules:

  • No harvest of Yellowstone Cutthroat Trout
  • Rainbow and hybrid trout - no limit
  • 2 Brown Trout Per Day

Yellowstone cutthroat trout
Yellowstone Cutthroat Trout

Rainbow Trout
Rainbow Trout with White Fin Tips
No Daily Bag Limit

Brown Trout

Brown Trout
Limit of Two Per Day

Only rainbow trout and hybrids have been tagged for the incentive program. Rainbow trout and hybrids are easily identified by their white-tipped fins.