South Fork & Henry's Fork Fishing Reports

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Fishing Reports

Jimmy's All Seasons Angler / Fishing Reports (Page 92)

Still Waters 9-11-12

If you fish Island Park Reservoir you know it takes a bit of effort to travel to Grizzly Springs without a motor.  With kokanee moving into the river and big  rainbows sure to follow them, consider fishing streamers where the river enters the reservoir.  There are nearby places to launch a boat, or you can wade the river just above McRae’s Bridge. A time to do this with a better chance to encounter a big rainbow would be right around twilight.

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Henry’s Fork 9-11-12

Cooler and longer nights, lower flows out of Island Park Dam, and less daylight are making for changes.  Streamer and two-fly nymph rigs fishing is picking up in Box Canyon.   Mahogany Duns and BWOs are showing on the river below as tricos and callibaetis decrease.   Terrestrial patterns still work, but their days are coming to an end as we cool of further.  So make some changes in your fly box!

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South Fork 9-11-12

Just a few hours ago flow out of Palisades Dam was reduced to 7240 cfs.  At the Heise gauge it is about 9700 cfs.  This makes for easier wading, and just might be the ticket for improving riffle fishing when BWOs and mahogany duns peak.   Also we might see more mutant golden stones emerge. Wait a day or two for things to stabilize in the river and fishing will pick up.

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Henry’s Lake 9-11-12

We’ve had reports of good fishing early in the last few days before the wind kicked in. Yesterday it was strong enough to send  many boats off the lake.  Creek mouths were good locations with Targhee Creek leading the pack and Howard Creek coming on.

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Yellowstone Park 9-8-12

Browns have begun their migration out of Hebgen Lake into the Madison River and on up to spawning grounds in the Gibbon and lower Firehole rivers. The same will soon begin on Lewis River Channel and the Yellowstone  River. So break out the streamer patterns.  Cooling weather is beginning to improve fishing success on the Firehole River.  Trico activity is making for good fishing along the Madison River and in Fall River Basin.   So keep those trico patterns handy for a while.

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Still Waters 9-8-12

Island Park Reservoir,  mostly on the west end,  has been drawn down to levels where sand bars and mud flats are exposed or close enough to the surface to present a hazard to boaters.  Nevertheless good fishing can be had near spring holes such as Grizzly Springs.  Getting there pretty much requires long distance boating, so be careful of the submerged conditions on the way there and back. When you get there, try bloodworm patterns under an indicator and experiment to find the taking depth.  Springfield Reservoir is producing for those folks presenting midge pupa patterns around spring holes.   Expect company on these and the few other still waters offering good fishing because so many such as Twenty-Four Mile, Daniels, Chesterfield and Condie have been drawn down to levels where conditions are unfavorable for fishing.

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Big Lost River 9-8-12

The river below Mackay Dam is in great wading shape now. Trico spinners and egg droppers are still providing AM action.  Later it is on to terrestrial patterns and traditional attractors followed by caddis life cycle patterns.

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Henry’s Fork 9-8-12

Now that cooler weather is here mayfly hatches,  though still significant, are not the only game in town.  If you tend toward the river in  Harriman State Park this time of year, a good strategy for presenting larger flies are long, drag free as possible, drifts.  Present in this manner around bank side cover, sweepers (which are relatively rare here), rocky shorelines, and timbered shorelines.  Terrestrial patterns are best for using this technique, and those, especially hopper patterns,  tied with traditional materials seem most effective within these.   Don’t expect to catch a huge number of fish using this strategy, but do expect to encounter some of the larger fish here.

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Henry’s Lake 9-8-12

Fishing is picking up now. Creek mouths remain the place to go for action using mity mites, peacock leeches, crystal buggers and black coppers.  But with cooler weather here and more to come, fishing all around the lake should pick up even more.  Folks are concerned about the size of fish being caught, but the better news is that with so many fish in the lake there will be plenty for all anglers to enjoy.

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Small Streams 9-8-12

It’s a tough time of year for fish in many of our smallest streams. We visited Jackknife Creek with 2-weight rods a few days ago, and became concerned with the low water we saw there.  The creek has a large drainage, but like so many smaller streams the dry, warm summer has limited surface water throughout the drainage. We managed to catch some beautifully colored cutts, but only in deeper runs and holes having water flowing through.  We originally intended to fish beaver ponds along the creek.  But these hosted huge algae blooms, thus fish were absent because of lowered dissolved oxygen.  Concerned that we would be stressing fish, we ended our fishing early.    Such an experience can be expected now on many of our smaller streams at the end of this dry summer.  Let’s hope for a good snow winter followed by a summer with more precipitation than this one to give trout populations better living conditions next year.

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