Idaho Fishing Reports ยท Upper Snake Region
From Conant through the canyon to Heise, the South Fork runs through cottonwoods and cliffs with eagles overhead and big cutthroat and browns in the side channels.
Looking for the latest South Fork of the Snake (Canyon to Heise) river report? This page is updated by the AvidMax fly shop team with live flows, current conditions, hatches and the flies working now on the South Fork of the Snake (Canyon to Heise).
Current flows
Wind forecast
South Fork of the Snake fishing report
Updated November 7, 2026.
Flows are lower and the river is clear for fall.
Fish the seams and side channels with streamers and nymphs, and watch for BWOs.
Load your fly box
Before you head to South Fork Canyon to Heise, bring: Woolly Bugger #4-8, Sculpin #4-6, Pat', s Rubber Legs #6-10, Pheasant Tail Nymph #14-16, Chubby Chernobyl #8-12, Parachute Adams #14-18, Zebra Midge #18-22, RS2 Emerger #18-22, JuJu Baetis #18-22, Black Beauty #20-24, Egg #14-16.
Flies working right now
The flies above that we have in stock right now.
South Fork of the Snake details
| Access | Conant, Cottonwood, Byington and Heise boat ramps. |
|---|---|
| Elevation | About 5,000 ft |
| Nearest town | Ririe, Idaho |
| Best season | Year-round |
| Fish | Yellowstone cutthroat, brown and rainbow trout |
| Regulations | Keep rainbows here to help the cutthroat. Check the Idaho Department of Fish and Game seasons and rules before you go. An Idaho fishing license is required for anglers 14 and older, plus a steelhead or salmon permit where those fish are targeted. |
| Leaders and tippet | 9 ft leaders, 2X to 4X tippet |
| Camping | BLM camps in the canyon (boat access) and Heise Hot Springs |
| Kids | Partly. Calm side channels near Heise. |
| Good to know | The canyon float is long. Plan a full day. |
Fishing by season
Winter
Midges.
Spring
Runoff.
Summer
Stoneflies, PMDs and hoppers.
Fall
BWOs and streamers.
How to get there
From Idaho Falls, take US-26 east to Ririe and follow the Heise Road.