Best month to fish the South Fork of the Snake River

Month-by-month fishing quality

Why these months?

Two things decide your odds on the South Fork of the Snake River: flow and season. You need the river in its fishable-flow band — so a freestone in spring runoff is out no matter how good the hatch would be, while a dam-fed tailwater holds shape year-round. On top of that, the hatches and water temperatures line up best in September and August and July and October, which is why those months edge out the rest. The South Fork of the Snake River's season runs year-round tailwater on irrigation releases; prime july–october.

The South Fork of the Snake below Palisades Dam is the largest cutthroat fishery in the West — forty-odd miles of big, cold tailwater running through a cottonwood canyon that holds native Yellowstone cutthroat alongside browns and rainbows. Irrigation demand keeps it high and cold right through the hottest weeks of summer, which is exactly why it fishes when other rivers are too warm, and its early-July salmonfly hatch and August-into-September streamer and hopper fishing are legendary.

Where to fish the South Fork of the Snake River

The Palisades-to-Irwin and Conant-to-Byington floats are the classic days, and this is fundamentally a boat river at summer flows. The canyon section holds the best cutthroat water. Because the level is set by irrigation rather than weather, check the release rather than the forecast before you go.

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