South Fork & Henry's Fork Fishing Reports

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Fishing Reports

Jimmy's All Seasons Angler / Fishing Reports (Page 17)

Henry’s Lake, July 11th, 2020

There is some success to be found in water of  a moderate depth with small black or olive leech patterns. But now is the time to arrive early at creek mouths and springs to stake out your claim on water. The earlier the better because as the season advances and the lake warms, the more folks will be doing the same.  An intermediate line to present standard Henry’s Lake patterns at creek mouths will do the trick.


South Fork, July 11th, 2020


South Fork 4

Flow on the river is at great levels ( 12400 cfs at Irwin, 13500 cfs at Heise,  5000 cfs at Lorenzo) and water is cold but clearing up. Fish responding are where you find them!  There are plenty of sallies, some caddis, PMDs and big stone flies round, but fish seem to take them on an inconsistent basis with respect to location on the river. Nymph patterns, with and without a bead head presented over drop-offs seem to be the most consistent way to success.


Henry’s Fork, July 11th, 2020

Time to enjoy what is left of the great mayfly hatches on the upper river. Brown drakes and flavs are beginning to diminish.  Soon PMDs and speckled duns will make up the major mayflies. Caddis of many types will be around. But just around the corner terrestrial insects will rule the roost. Ants and hopper will be of major attraction to trout.

Look for the lower river to begin warming to the point that early and late in the day will be the best times to present caddis life cycle patterns as well as those for terrestrial insects. Also look for boat traffic to drop, but an increase in recreational boaters.


Small Streams, July 11th, 2020


Bitch Creek

Almost every small stream now offers good fishing. The number of these is almost beyond counting. From the Sinks Drainages (Big Lost River above Mackay Reservoir, Beaver, Birch, Camas, Little Lost, Medicine Lodge, Sawmill Creeks) on east to Palisades Reservoir and Salt River Drainages ( Big Elk, Bear, Crow, Jackknife, McCoy, Stump, SF of Tincup, Tincup, Creeks), all have something to offer the small stream enthusiast. Get in touch with us with questions on what to use, when to visit, etc., on any of these or others that are of interest to you.


Henry’s Fork, July 4th, 2020

We are past the peaks of the big stone fly and green drake activities. Now is the time on the upper river for flavs and PMDs during daytime and brown drakes during evenings. Look for a lot of folks being on Harriman East, especially using Wood road 16 to access the river during evenings. Because of the South Fork turning on crowds are thinning, but enthusiasts remain. This also applies to the lower river where good PMD and caddis activity remains, but the usual summer warming will begin any day.


South Fork, July 4th, 2020

The multiple hatch days on the Henry’s Fork have peaked. Now it is the South Fork’s turn! With the flow back to summertime levels ( 13200 cfs at Irwin, 13800 at Heise, 8000 cfs at Lorenzo)  all sorts of bugs are out. PMDs, green drakes, sallies, and salmon flies are out and up river at least into the canyon. Fish know what they are and are on them. The fun begins with figuring out which bugs are in the favor of trout at any given location on the river. So go with life cycle patterns for all those mentioned. Also include the old standard patterns. Word is out, so boat launch sites are crowded. So is the river road above Heise with boats being trailed to launch sites and shuttles being completed. You will see license plates from as far away as New Jersey and from as close as from here at home, but there is plenty of this great river for all of us.


Still Waters, June 30th, 2020

Chesterfield Reservoir continues to offer some of the best still water fishing in the area.  Try the upper end of Daniels Reservoir or the river channels entering Mackay Reservoir for other areas offering good fishing. Damsel fly life cycle patterns should be good bets on any of these.


Yellowstone Park, June 30th, 2020

Mtn Ash

Where is it?

This cool, wet weather could make an exception to leaving the Firehole River alone. Overcast to rainy conditions allow some fishing here. Try swinging soft hackles or presenting white miller, sally, and PMD life cycle patterns in areas above larger thermal features until about noon. Then head elsewhere to such as the Madison River where PMD and caddis activities can make afternoon visits enjoyable.  With the Ashton-Flagg Ranch Road now open, access to the Fall River, Beulah Lake and other great waters is possible. Streams in the northeast portion of the park still hold run-off waters, but should begin shaping up in a week or two.  Fall River Basin streams are shaping up.  Look for small stone flies to be the first aquatic insects to emerge followed by PMDs. Fish in these streams know what wind-blown giant stone and golden stone flies are.


Small Streams, June 30th, 2020

Medicine Lodge

Look for a long season coming up on all of our small streams. The number of waters here is almost limitless.  From meadow streams such as the upper Blackfoot River, the river in Teton Valley and middle McCoy Creek to riffle and run streams including Big Elk, Robinson, Palisades, Bear and Beaver Creeks, to name a few, the small stream enthusiast in this area is “a kid in a candy shop.”  We will keep track of how fishing develops on these because they offer tranquil alternatives to our much visited icon waters.

Currently roads to some of our small streams may be a it “mushy” because of recent rains. Most will dry out in a day or two of sunshine.   This could apply to roads in the Island Park area, and further west to roads in the Camas Creek and Little and Big Lost River drainages.  The Ashton-Flagg Road is open, but likely soft in places because of recent rains (and snows at higher elevations).

The Blackfoot River and drainage above the reservoir opens to fishing tomorrow, July 1st, as does the Willow Creek drainage and South Fork tribs below Palisades Dam. These late openings are in place to minimize pressure on spawning cutthroat trout.