South Fork & Henry's Fork Fishing Reports

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Fishing Reports

Jimmy's All Seasons Angler / Fishing Reports (Page 58)

South Fork 10/5

The flows were reduced to 4,200 cfs yesterday. I assume that we will see a more aggressive approach to lowering the water to our winter flows within the next 2 weeks. The lake is low and irrigation demand is low as well, so there is no need for water to be in the system. We have not been informed of how low the river will go for the majority of the winter, but my guess is between 800 and 1,200 cfs.

Fishing is still moderate. Lots of moss still in the river and cleaning your flies is a must if you want to catch any fish. I suggest fishing bead head nymphs below a Hopper or a Chernobyl Ant. Zebra Midges in Red and Black size #16 & #18. Pheasant Tails, and BWO nymphs like the Bubble back Emerger BWO have proven effective as well. You will still get a few eats on the big dry so try not to be so suprised when it happens. I prefer the nymphs below the dry because you don’t seem to catch as much moss on your flies, versus fishing deep with an indicator. Streamer fishing has really picked up and I suggest fishing a sinking tip line or a sinking leader.

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Henry’s Fork 10/1

Fishing has been good on the Henry’s Fork. Nymphing and Streamer fishing have been the main tactics for hooking fish. BWO hatches have been few and far between but look for those flies to pop during overcast and rainy days. The fishing below the Ashton Dam have been really good as well as Warm River to Ashton. Stonefly Nymphs and a variety or bead head nymphs. I personally like a large #14 or #12 Pheasant Tail below a rubberleg.

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South Fork 10/1

The river has stayed steady at 5,500 cfs. This water conditions are very nice. The water is a little off color by the dam and through Swan Valley, but becomes crystal clear through the Canyon. The biggest issue with the water right now is the moss that has been dumped into the river from the reservoir. Fishing this weekend was good on a Chernobyl and and a bead head dropper. the fish have been keying in on red and black Zebra Midges. The BWO Redemption nymph and a red copper john have also been effective. Dropping a bead head about 3 feet below the hopper or Chernobyl and has helped with moss control. The streamer fishing has been decent with lots of chasing fish and a few players who are eating. I would personally consider the streamer fishing on the lower river really good right now. If you have questions call the shop. We will be happy to help you in any way we can.

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Big Lost River 9-18-12

Flow out of Mackay Dam is about 100 cfs higher than normal, but this keeps fish from concentrating into deepest holes.  Wading conditions remain good, and tricos emerge for early in the day fishing.  Evening caddis activity also brings fish up.

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Still Water 9-18-12

Fishing around Grizzly Springs and other spring holes seems to be holding up fairly well on Island Park Reservoir.  Water levels in the reservoir are low, so use caution when boating to these locations. When you get there, try blood worm patterns, and experiment to find the taking depth.  With cooling weather here, look for action to pick up on Sand Creek Ponds. Evening should be best when caddis emerge. Soft hackled patterns fished near the surface should be effective, but don’t over look hopper patterns presented along vegetated shorelines.

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South Fork 9-18-12

Some cloudy weather sure would help increase the BWO emergence. It looks like the beginning of next week may bring some. The river has stabilized with respect to flow changes. The last drop was back on September 14th, and responses from fish are back to normal.  However, the reservoir is less than twenty per cent of capacity, and storage for next year’s irrigation season must begin.  So more decreases in flow out of Palisades Dam must be expected in the coming weeks.  As we learn of these flow changes, we will post them here and advise how such should impact your South Fork fishing strategy.

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Henry’s Fork 9-18-12

Mayfly emergence events on the upper river are diminishing quickly with colder weather setting in.  Soon that of  BWOs will be the only one available.  Almost on key flying ants are coming on to provide action from trout which seem to crave them.  So add ant patterns to your terrestrial pattern roster when you venture to the Last Chance , the Harriman State Park reach, and the river around Hatchery Ford.

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Yellowstone Park 9-18-12

Some storms were in the area this last weekend, and we got some reports of good responses to Firehole BWOs during overcast conditions. Other than that, terrestrial patterns most likely are your best bet during daytime. With a bright atmosphere one must be stealthy, so long floats especially to the opposite bank, fly first would be the best strategy on such crystal clear waters as Slough Creek,  Soda Butte Creek,  Bechler River, Fall River, and Boundary Creek.  Other choices for good fishing would be the morning trico mating-spinner fall activity on many of the Park waters or  early or late in the day streamer fishing in waters where brown trout are stocking up and beginning spawning migrations.

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Main Stem Snake River 9-15-12

Only a few reports on good fishing here to date, but they are sure to come as lowering flows make the river more accessible.   For now, where wading is safe,  try presenting streamer patterns when first light reaches the river or beginning about sunset.  Caddis are also active during evenings, and if we ever have overcast or storms again, look for BWOs to emerge and fish to respond.

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