South Fork & Henry's Fork Fishing Reports

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Fishing Reports

Jimmy's All Seasons Angler / Fishing Reports (Page 24)

Small Streams 8-4-15

Caddisflies stay active on most of our small streams this time of the season.  Terrestrial insects also become important food forms for trout. As discussed in our Yellowstone Park report, having patterns for these along is now important. The other consideration to realize is that many of our smaller streams are warming up as waters drop to base levels. Streams that have a large water component from springs (Birch, Big Elk, Bitch, Diamond, Little Lost, Teton River) or water from lakes with subterranean outlets(Palisades) tend to stay cooler longer than those that do not have as much of such (Robinson, Bear, Pine, Upper Blackfoot) or are subject to draw-down ( lower Fall River). So concentrate your efforts on those with cooler inflows and be sure to have terrestrial patterns in your fly box.

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Yellowstone Park 8-4-15

Any stream you choose to fish in the Park, this is the season when terrestrial insect patterns should be in your fly box.  Dry ant, beetle, cranefly, cricket, hopper, and sprucefly patterns fished near overhead cover, especially adjacent to deep water are the names of the game. Consider that the days are getting shorter meaning that it takes water and surroundings a bit longer to heat up for insects, then fish to become active. So concentrate your fishing efforts with these patterns into the afternoons. Fastest action currently in the Park, you ask? For moving water try Boundary, Obsidian, Soda Butte, or Slough Creeks. For still waters try either Beula or Riddle Lakes.

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Henry’s Fork 7-28-15

It’s time to break out those terrestrial patterns for fishing the upper river. Except for speckled duns, upcoming tricos, and late season BWOs, the big mayfly emergences are over. Long drifts of ant, hopper and beetle patterns in front of bank side cover where water has some depth will one of the best places to target.  Breezes will help not only to help obscure your presence, but help drop bugs into the water.

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South Fork 7-28-15

Flow out of Palisades Dam has been lowered only slightly over the past several days. It’s now a bit more than 9500 cfs. The river is warming a bit with water out of the dam now at 60 degrees F.  That temperature is not high enough to have a big impact on hatches. Getting into the middle 60s in same degrees begins impacting mayfly hatches. Caddisflies seem to be not as affected. So get out and enjoy those PMDs and pink alberts that makes South Fork riffle fishing so much fun, but be sure to have hopper patterns in that fly box.  They are around on the lower river and become more important to fish as the days go by.

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Small Streams 7-28-15

Our recent thundershowers and showers benefit regional small streams big time. Flows stay up and water temperatures tend not to rise as they would under drier conditions.  Another benefit is that increases in relative humidity before an particularly after a storm enhance aquatic insect emmergences. But for sure it is best to delay fishing for a day or so after a moderate rainfall, or to wait until a stream known to discolor clears up.   Some area streams that have benefited from recent rainfall include the South Fork/Palisades Reservoir tributaries (Palisades, Big Elk, Bear, McCoy Creeks), Bitch Creek, Medicine Lodge Creek, Beaver Creek, Diamond Creek, Little Lost River/Sawmill Creek, and the Salt River tributaries. These streams are all uncrowded, and they are beginning to see plenty of terrestrial insects in surroundings. Some host trout to trophy sizes.  Get in touch with us for more info on any of them and on other small streams worthy of a visit.

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Still Waters 7-25-14

We have good reports from Chesterfield and Springfield Reservoirs. At Springfield try dry damselfly and dry speckled dun patterns. For Chesterfield, fish  near the reservation boundary and try renegade patterns on the surface. Are fish taking these for ants? Who knows!

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Yellowstone Park 7-25-15

We do not get a lot of information on fishing at the northeast corner of the park, but we have heard that Soda Butte Creek is fishing very well with cutthroat responding to green drake and PMD life cycle patterns. Most of Soda Butte Creek flows along the northeast entrance road, and therefore can become crowded. Crowding increases on approaching the confluence with the Lamar River, so fish upstream from here to minimize company. Speaking of the Lamar River, its also fishing well.  But it is a good idea to check weather conditions before a visit because this river has a reputation of discoloring when thundershowers dump on its drainage above its reach along the highway.  Beula Lake continues to fish as well as any still water in the park. Gulpers are working these, but when wind comes up, switch to small olive or black leech patterns.

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Southwestern Montana 7-25-15

There are now 13 “hoot owl” closures (no fishing 2PM to midnight) on western Montana streams. This closure is applied when in stream temperatures reach levels considered to be dangerous to resident salmonids.  To view closures, go to the Montana Fish Wildlife and Parks official web site.  Then go to Fishing and Waterbody Restrictions and Closures.

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South Fork 7-23-15

Flows continue to drop on the South Fork to now be 9,990 cfs at Irwin. So with more gravel being exposed, I would be more aware of mutant stones hatching and using a Chernobyl Ant. Also, Golden stones along the bank and Pmd’s in the riffles are still constant throughout the entire river system. Fly selection for the South Fork would be mostly dry flies such as: Pink Comparadun size 16 and 18, Super Chernobyl Brown size 10, CFO Flesh Ant size 8 and 10, Harrop’s PMD Captive Dun size 16 and 18, CFO Sally X size 14 and 16.

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