South Fork & Henry's Fork Fishing Reports

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Fishing Reports

Jimmy's All Seasons Angler / Fishing Reports (Page 11)

Henry’s Fork 7-28-17

Up and down the river the same theme applies. Fish early and late in the day for best action. PMDs are into smaller sub-species and flavs are diminishing. Terrestrial insect patterns are almost required for good action on the lower river, and these are coming on strong on the river from Cardiac Canyon upstream.  Rusty spinner patterns  in sizes 16 on down are good choices for AM fishing everywhere.  Caddis life cycle patterns seem to be good choices everywhere for evening fishing and especially in Box and Cardiac Canyons. It is getting to the time of the season when keeping track of the flow out of Henry’s Lake is important because as that flow drops (currently good at about 98 cfs) and warms fish in the Flat Ranch section will begin migrating downstream from the river to the Big Springs outlet-Mack’s Inn water.

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Big Lost River 7-28-17

The days of high water below Mackay Dam are gone until after the next winter of big snowfall. Flow just below the dam is where it usually is historically; around 500 cfs (about down to 0 cfs at Arco). This is a bit high for safe wading, but great for float-fishing.  We have no reports on fishing this part of the river, but safe to say woolly bugger types, your favorite bead head nymphs (especially as a dropper/trailer with Woolly bugger types), and streamers will work for now. Let’s wait until water drops more before good dry fly fishing kicks in.

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Henry’s Fork 7-22-17

Best time to visit lower river is early and late in day, and terrestrial insects are coming on to being important in trout diets.  Look for this advice to remain until fall season.  On the upper river mayfly hatches have moved off the early season peak and terrestrial insects are building.  So it is the time to begin transitioning those fly box contents. Also it is the time of the season when crowds diminish a bit.

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Small Streams 7-22-17

Almost every small stream in our area is finally in fly-fishing condition. There are so many candidates, from the Teton River down to such as Medicine Lodge Creek, worthy of a visit that describing each would overwhelm this web site. Best thing to do is to for information on any of these is to contact us for suggestions and strategies.

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Yellowstone Park 7-22-17

All Fall River Basin streams (Bechler and Fall Rivers, Boundary and Mountain Ash Creeks) are in dry fly fishing shape now. Damselflies, Yellow sallys and PMDs are emerging to interest fish.  Fish take patterns presented for these during late AM to late afternoon hours as well for the few golden stoneflies brought in by the wind.  During evening hours their interest turns to brown drakes. Terrestrial insects are building around the edge of the meadow reaches meaning its time to stock up on ant, beetle, cricket, and hopper patterns.

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Still Waters 7-22-17

Reports from Sand Creek Pond #4 give daytime water temps in the low 70s deg F. This slows fishing and makes playing fish as quickly as possible necessary. Reports also say action is good early in day. Try damselfly and speckled dun life cycle patterns, and do not overlook soft hackle versions for emergers of each.   Present those just below the surface.  Hebgen Lake gulper action remains the fastest still water fishing in our area.

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South Fork 7-22-17

With flow out of Palisades Dam at 11900 cfs this AM (13900 cfs at Heise), the river is at almost ideal flow for this time of year. Fish still are keying mostly on streamers and rubberlegs, earthworm imitations, and bead head nymphs as they did during the high water days.  Look for more top water action  coming soon as PMDs are out, especially along lower river.  See last South Fork fishing report for fly pattern suggestions for upcoming days.

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Big Lost River 7-15-17

IDF&G is strongly considering a salvage regulation on the Big Lost River below Moore.  This is because as flows out of Mackay Dam decrease fish will become trapped in downstream pools and perish.  So rather than being wasted, salvage by legal means is being considered for the lower river. Go to the IDF&G web site for details on where this operation will be applied and for how long.

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Henry’s Lake 7-15-17

Action is slowing down somewhat. Best strategy will be to head for creek mouths. All  creeks coming into the lake have good water levels this season. Cooler water coming from them attracts fish because of higher dissolved oxygen concentrations. The same applies to spring holes.  Get to these locations early in the day to present your favorite leech and damselfly nymph patterns, but expect company from “anglers in the know” as the day advances.  Want to experience even better still water fishing than Henry’s Lake currently offers? It’s not far from Henry’s Lake and can be found during the Madison Arm gulper activity on Hebgen Lake.

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