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 10-26-19

Flows are dropping making either walk-in wade or fishing through boating practical.  Migrating browns are the big attraction and respond to well placed streamer patterns whether presented through boating or wading. Consider that there are more brown trout in the main stem from American Falls Reservoir upstream than in the South Fork and the lower Henry’s Fork.


Main Stem Snake River 9-17-19

With less irrigation water in demand meaning reduced flow in the Snake River, it is time to have streamer patterns ready for migrating browns as well as big resident rainbows.  Drift boating is the best way to encounter these, but there are walk-in wade locations along the river. Get in touch because we can pinpoint these for you.


Main Stem Snake River 3-12-19

For the river above American Falls Reservoir all gage readings show flows about 50% higher than normal. Look for these to stay high with flow out of Palisades Dam on the increase. Flow below the reservoir is about 6700 cfs ( Anchors away, my friend!) whereas normal is around 2700 cfs.


Main Stem Snake River 10-27-18


Dave R. and friend

With water storage season beginning, flow in the Snake River is dropping ( 3510 cfs at Eagle Rock, 3790 cfs at Shelley, 3620 cfs     at Blackfoot).  With brown trout in their annual spawning migration,  streamer presentation is the name of the game on the river.  Doing so under low light conditions will be most effective to maybe encounter your biggest trout of the year.  Float fishing is the best way to fish, but there are plenty of good walk-in wade locations. We can point out many of these to you, so get in touch, or visit the shop.


Main Stem Snake River 9-29-18



Have you noticed the number of boats increasing here?  That is because the river is dropping and big browns are beginning to migrate.  As is usual this time of year, they will take big streamer patterns especially early and late in the day.  There are a number of public accesses from Menan down to McTucker from which to begin and end a float trip. We will begin to receive information on where the best action is along the river, so get in touch if you are considering a main stem float trip or a walk-in wade outing.


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.