South Fork Fly Fishing Report

South Fork Fly Fishing Report

The section of the Snake River which flows out of Palisades Reservoir into Idaho is what’s referred to as the South Fork.   The South Fork of the  Snake River offers extremely diverse fly fishing experiences. Whether sight fishing to picky fish, targeting trout in the shallow riffles using small PMD’s and caddis,  or twitching stoneflies and big hoppers along the river banks, the South Fork offers all types of fishing experiences.

The valley stretches offer a broad river with many side channels and braids that provide great fishing in the riffles. The canyon stretch is 26 miles of wilderness. Cutthroat, rainbows and browns call this river home and can grow quite large.

Given the right conditions the South Fork can come alive with the salmon fly hatch at the first of July, while the fall fishing on the South Fork can provide some of the best action.

Call us or e-mail us at to discuss fishing conditions and options on this distinctive river.


Other Great Resources:

Snake River Water Flow Levels 

February 12th, 2015

Fishing Report for week of 2/9 The temperatures are still in the 40’s, and there is no evidence telling me that is going to change through the rest of the week.  This warm spell has been giving us some unusual good February fishing.  A lot of anglers have been fishing everywhere from our local Snake river, to the Henrys, and the South...... read more

October 7th, 2014

After a week of steady water reduction on the Snake we are now at winter flows for the foreseeable future. Due to heavy rain in recent weeks the winter flows will now stop on the 8th and will stabilize around 450 CFS. With the larger reductions already having taken place last week, fishing has returned to normal fall conditions. The colder...... read more

September 24th, 2014

Well we couldn't have asked for a much better September than this one. Fishing has been great and favorable conditions the next few days suggest we still have some time. Although we encountered a lot of rain and colder temperatures throughout August, September has been great with temperatures rising up to high 70s in the afternoon. Sunny skies...... read more

Trout Fishing South Fork of the Snake River

July 9th, 2014

The last couple weeks have been very warm, but looks like we could get some cooler temperatures with some afternoon storms in the forecast. This has accelerated the snow melt, but has also made current fishing conditions tough. Just under the Jackson lake Dam flows have increased up to 2520 CFS. With the increased flows and warm weather the...... read more

Hoppers Jackson Hole

July 2nd, 2014

The Season is upon us. Clear skies and warm weather is expediting the snow melt. We have still got a couple of weeks till the Snake is ready, but by the end of the month it should start fishing. We've had some positive feedback from some of our guides recently.  Although clarity is not optimal, we have had some success with tandem nymph rigs...... read more

Little Girl With Fish

June 27th, 2014

The cold weather from last week stalled the run off, but with temperatures in the high 70s throughout the week expect to see it pick up again. The Flows have increased around Moose to 7220 CFS and we should see the Snake start to get muddy again. Below the Jackson Lake Dam flows have been stable at 1800 CFS. Although visibility is great, the...... read more

June 16th, 2014

The Snake River is still high, and muddy while our run off is still in full swing. The best stretch on the Snake would be our tail water stretch dam to Pacific creek, where the flows out of Jackson Lake is at a steady 1,800 cfs.  The water is not clear, but is certainly not muddy, making it a decent option in the Jackson Hole area right...... read more

June 7th, 2014

The Bureau of Reclamation raised the flows out of Palisades Dam today to 15,500 cfs with plans to go to 18,500 cfs on Sunday.  This is to mimic a natural flush during the spawning season, so the wish for stable flows for the next week are not coming true.  Stay tuned, when they stabilize flows and the water temp warms up a bit, it will be a...... read more

June 4th, 2014

Currently flows out of Palisades Dam are right at 14,000 cfs, which is a very fishable level, some even argue that this higher flow is better than a lower flow.  It creates more riffles and skinny water for the fish to spread out and feed on small mayflies when they start hatching later in the summer.  The river has been stable at 14,000 since...... read more

August 14th, 2013

We have enjoyed some rewarding fishing on the South Fork this season with more experienced anglers, as the river has been demanding of more technical fishing, and we continue to see some good action.  Streamer and nymph fishing has been most productive the last couple weeks with reports from our guides and friends that there are some sizable fish...... read more

Hoppers Jackson Hole

June 25th, 2013

They're back!!!!!  The South Fork is proud to host a great hatch of Salmon Flies, and they are back!  The flows are ideal at 12,800cfs and the big bugs showed up on the lower river three days ago, now they are moving up the river quickly and the fish are glad to see them.  The hatch and presence of adults on the river have gotten the fish...... read more

June 15th, 2013

The South Fork has been holding steady at 12800 CFS, which is a very fishable level for the South Fork.  We have been hearing good reports about nymph, and streamer fishing on the South Fork, and expect to see the dry fly fishing pick up as the month goes on.  Call, or stop by the shop, and We'd be happy to give you some more pointers, and lead...... read more

May 29th, 2013

The South Fork of the Snake in Irwin, Idaho is shaping up nicely.  Some much needed rain in the last part of May is great news for our water situation.  The flows out of the Palisades Dam are currently at 11,000 CFS and the forecasts show it stabilizing around the 8,000 cfs mark by Friday.  This is ideal flows for the river, bugs and fish. ...... read more


May 20th, 2013

As always, this should be a great year on the South Fork.  Flows are currently coming out of Palisades Dam at 17,000 CFS.  This is a high flow, but they are raising and lowering it to mimic a natural spring flow to help the trout with their spawing efforts.  Currently the river is a bit off color, the upper section is somewhat clearer, but as...... read more


August 17th, 2012

Despite the tough couple of weeks we have had on the South Fork of the Snake, things are starting to turn around for our Idaho tailwater. Changes in waterflows about two weeks ago did tough things for the South Fork fisherman. The fish got deeper, shied away from most flies, and seemed lazy and uninterested in aggressive feeding. The water was...... read more

July 12th, 2012

If you have an Idaho license and an extra day to fish I would highly suggest making your way to the south fork of the Snake. there are some very healthy fish gorging themselves on bugs right now. While the dry fly fishing is somewhat sporadic and the streamer bite is only good with a little weather; there is a subsurface feeding frenzy going on...... read more

June 9th, 2012

The South Fork of the Snake River is looking beautiful these days.  Flows out of Palisades reservoir are steady at 10,000 cfs,  it appears that they will be able to sustain these flows.  If they do keep the flows steady, the bugs should pour off.  Right now the stonefly nymphs are very active and are crawling around.  The nymph fishing has...... read more


May 9th, 2012

The South Fork has been flowing at approximately 9,000 cfs for the past few days, but they raided the flows out of Palisades Reservoir today to 9,750.  We have not seen a predicted flow regiment from the Bureau for this spring, but with the warmer temps and the water levels on the Snake increasing, we expect for them to increase flows on the...... read more


April 10th, 2012

Here we are in the first of April and the South Fork of the Snake has fished well.  The flows out of the dam have just recently been increaesed from 4,000 cfs on April 4th to 10, 000 cfs as of the 6th, they have been steady at 10,000 cfs since the 6th.  Sure, 10k is a bunch of water, but, the South Fork is a big river and this is a very normal...... read more

February 21st, 2012

The South Fork of the Snake offers a legitimate option for winter fishing in the Jackson Hole area. Weather is very critical, but when you get a day in the high 20's to 30's fishing can be quite productive. Nymphing the tail outs and softer seams should be the most productive with a variety of basic nymphs and rubberleg stonefly nymphs. When it...... read more