South Fork & Henry's Fork Fishing Reports

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Main Stem Snake River

Jimmy's All Seasons Angler / Main Stem Snake River (Page 2)

Main Stem Snake River 9-25-18


Paul B. and friend

Main stem flows are now dropping to normal levels for this time of year. Consider that there are fewer trout in the main stem of the Snake River, but there are more large fish within than any other river around here. The best way to encounter these large fish is through float-fishing, but there are plenty of walk-in locations.  Presenting streamers is the best technique, so have bright and somber patterns in large sizes within that fly box. Brown trout are moving to spawning areas, and rainbows will soon be following. Evenings and early mornings will be the best times to  encounter the big fish.


Main Stem Snake River 9-15-18


River flow is slightly higher than average for this time of year:  4530 cfs at Shelly, where 3840 cfs is normal flow there.   Nevertheless this begins the time to present streamers for browns beginning to migrate and foraging rainbows. Doing so via boating on this river is more effective than walk-in wade fishing.  You will likely encounter fewer boats than on the South Fork or on the lower Henry’s Fork. Low light conditions will be best for this, meaning first light or evening. Stormy conditions will be another good time, if we ever have some storms!


Main Stem Snake River 11-28-17

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Flow out of Palisades Reservoir certainly impacts flow in the Snake River down to American Falls Reservoir this time of year when water use for agricultural purposes greatly diminish. Currently flows in this part of the river are around double historical averages at nearly all gauge stations. Because Palisades Reservoir is near capacity, flow will likely remain higher than the historical average  with the possibility of increasing  during the winter. As with the South Fork reach above the Henry’s Fork confluence, walk-in-wade fishing will be tougher, but fish will benefit greatly.  Presenting streamer patterns will be the best way to encounter fish in the river during the winter season.


Main Stem Snake River 4-4-17

The American Falls West Side Boat Ramp is closed to boater and angler traffic while repaving of the parking lot and approach ramp takes place. It will reopen Memorial Day weekend.  During fall this year the old boat ramp will be removed and replaced.


Main Stem Snake River 3-8-16

Flows throughout the river are lower than average, and most of the river banks are free of ice and snow. Boat ramps are open, but walk-in wade fishing is just as convenient.  Triploid rainbows in moderate sizes are responding well.  There are many places available for walk-in wade fishing. Get in touch with us, or stop by so we can help choose a location for such. Currently, the best chance for action is through presenting streamer patterns under low light conditions.


Main Stem Snake River 11-24-15

Flows throughout the river are somewhat below normal for the time of year, and access for walk-in and wade fishing is plentiful. Float fishing is also practical as long as boat launch facilities are maintained for winter conditions. Presenting streamer patterns this time of year is the way to encounter large brown and rainbow trout as well as a few cutthroat.


Main Stem Snake River 11-12-15

Flows are a bit below normal in most locations. Browns are moving, but fishing success seems to have slowed a bit, in part because of our sub-normal temperatures.  Pitching streamers under low light conditions remains the “name of the game.” With warmer air temperatures action would pick up.


Mainstem Snake River 11-3-15

Flow throughout the river above American Falls Reservoir is a bit below normal, and brown trout are migrating. Candidate locations to try abound, and presenting big streamer patterns under low-light conditions is the best way to encounter these fish. Visit us at the shop, and we can point out some of the likely best locations for doing so. Flow out of American Falls Dam is a bit over 400 cfs meaning fish really will be concentrated around deeper water. Streamer patterns will be the best way to encounter these fish. Expect plenty of company doing the same.