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© 2026 Barbless.co. Flow and gauge data from USGS; weather from Open-Meteo. · v2026.10.18.2

  1. Idaho
  2. Rivers & Lakes
  3. Henrys Fork of the Snake River, Box Canyon to Riverside

Updated September 26, 2026

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Idaho Rivers › Upper Snake Region

Henrys Fork of the Snake River, Box Canyon to Riverside

A blue-ribbon Henrys Fork reach with canyon water, reliable access, and a strong mix of wild and stocked trout.

Blue Ribbon water18 mi · 29 kmLarge spring-creek-influenced freestone riverTrout fishery
View on MapGet Directions
Rainbow troutBrown troutYellowstone cutthroat troutBrook troutCutbow troutMountain whitefish

Classic Henrys Fork trout water from Box Canyon toward Riverside

AUTO-PROMOTE child of Henrys Fork of the Snake River. Tighten geometry via resolution draft.

Sources: idfg.idaho.gov · henrysforkanglers.com · henrysforkanglers.com
Henrys Fork of the Snake River, Box Canyon to Riverside on the water

Best Season

Late spring through fall

River Type

Large river with canyon sections, side channels, and mixed wade/boat water

Skill Level

Intermediate to advanced

Best Techniques

Dry flies during hatches, nymphing, streamers, and indicator or tight-line rigs in deeper runs

Access

Good overall; suited to wade, bank, and boat fishing, with amenities and access points in this corridor

Gauge stations along the Henrys Fork of the Snake River, Box Canyon to Riverside

Primary stations

Related stations

Access

Fish in Henrys Fork of the Snake River, Box Canyon to Riverside

Explore fish species associated with the Henrys Fork of the Snake River, Box Canyon to Riverside. Each profile includes identification tips, habitat notes, and practical fishing guidance for Idaho anglers.

Hatches on Henrys Fork of the Snake River, Box Canyon to Riverside

Review seasonal insect hatches on the Henrys Fork of the Snake River, Box Canyon to Riverside, including timing windows and fly pattern suggestions for Idaho fly fishing.

Regulations

Check current seasons, limits, and special rules for Henrys Fork of the Snake River, Box Canyon to Riverside before you go. Regulations change, so always verify with IDFG.

View IDFG Regulations

Guides & Outfitters

Recent conditions on Henrys Fork of the Snake River, Box Canyon to Riverside

The latest fishing conditions and hatch notes for Henrys Fork of the Snake River, Box Canyon to Riverside. Older reports live in the Henrys Fork of the Snake River, Box Canyon to Riverside report archive.

Videos on Henrys Fork of the Snake River, Box Canyon to Riverside

These YouTube videos have been hand-curated by our team because we feel they best represent the Henrys Fork of the Snake River, Box Canyon to Riverside fishery. Watch for river character, access context, and techniques that translate to your next Idaho trip.

Photos

Helpful Links

IDFG Fishing Planner: Henrys Fork Snake River

Nearby Communities

  • Island Park6.9 mi
  • Rea9.4 mi
  • Gerrit11.7 mi
  • Big Springs14.4 mi
  • Warm River16 mi
  • Sarilda17 mi

On this page

Overview
Flows
Live camerasAccessFishHatchesRegulationsGuides & OutfittersVideosPhotosHelpful LinksNearby CommunitiesReaches

River Tools

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Map data © Mapbox © OpenStreetMap

Fish in Henrys Fork of the Snake River, Box Canyon to Riverside

The Henrys Fork of the Snake River, Box Canyon to Riverside supports 6 fish species in our Idaho fishing catalog. Browse each profile for identification tips, seasonal patterns, and how these species are managed on this water.

  • Brook Trout
    Brook TroutA colorful introduced char of Idaho’s cold streams, small rivers, lakes, and reservoirs.
  • Brown Trout
    Brown TroutWary, hard-fighting trout that reward careful presentations and can grow into true fish-eaters.
  • Cutbow Trout
    Cutbow TroutA hard-fighting trout hybrid found where rainbow and cutthroat waters overlap in eastern Idaho.
  • Mountain Whitefish
    Mountain WhitefishA native coldwater scrapper that shines on nymphs when trout fishing slows down.
  • Rainbow Trout
    Rainbow TroutIdaho’s most widespread trout, quick to rise and willing to chase nymphs and small streamers.
  • Yellowstone Cutthroat Trout
    Yellowstone Cutthroat TroutA native dry-fly favorite of eastern Idaho, Yellowstone cutthroat shine in clear, cold rivers.

Part of Henrys Fork of the Snake River (whole river)

Other reaches on this river

2 reaches
  • Henrys Fork of the Snake River, Headwaters to Box Canyon

    Trout fishery35 mi · 57 km
  • Henrys Fork of the Snake River, Riverside to Mouth / terminus

    Trout fishery29 mi · 47 km

Recent conditions on Henrys Fork of the Snake River, Box Canyon to Riverside

The latest fishing conditions and hatch notes for Henrys Fork of the Snake River, Box Canyon to Riverside. Older reports live in the Henrys Fork of the Snake River, Box Canyon to Riverside report archive.

Henrys Fork of the Snake River, Box Canyon to Riverside

October 11, 2026

Flows at 159 cfs are extremely low, but streamer fishing is solid and fall hatches are active with rising fish.

All Henrys Fork of the Snake River, Box Canyon to Riverside fishing reports

Guides & Outfitters

Fishing guides, outfitters, shuttles, and shops that operate on the Henrys Fork of the Snake River, Box Canyon to Riverside.

No verified providers for this river yet. Browse the full directory.

Videos on Henrys Fork of the Snake River, Box Canyon to Riverside

These YouTube videos have been hand-curated by our team because we feel they best represent the Henrys Fork of the Snake River, Box Canyon to Riverside fishery. Watch for river character, access context, and techniques that translate to your next Idaho trip.

No videos
No related videos yet.

Access

Hatches on Henrys Fork of the Snake River, Box Canyon to Riverside

The Henrys Fork of the Snake River, Box Canyon to Riverside is a reach of the Henrys Fork of the Snake River, which has 22 documented insect hatches across spring, summer, fall, and winter. Review seasonal timing and recommended fly patterns to plan productive days on this Idaho water.

Hatch timing for the Henrys Fork of the Snake River as a whole, not specific to this reach.

Spring
Summer
Fall
Winter
Blue-winged Olive
March Brown
Midge
Sculpin
Grannom Caddis
Brown Drake
Caddis
Golden Stonefly
Pale Morning Dun
Salmonfly
Callibaetis
Flav
Gray Drake
Green Drake
Yellow Sally
Ant
Beetle
Grasshopper
Pink Albert
Trico
Mahogany Dun
October Caddis
PeakActiveSelect a dot for timing and patterns, or a month to focus it.

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