South Fork & Henry's Fork Fishing Reports

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Still Water

Jimmy's All Seasons Angler / Still Water (Page 8)

Still Waters 6-7-16

Here’s some interesting info about 24-Mile Reservoir: folks with fish finders say there are fish in deepest water just above the dam.  Chesterfield Reservoir remains slow fishing, but the Portneuf river below is in good shape.  Daniels Reservoir is fishing nicely with the upper area springs being the best location. Try your favorite damselfly nymph pattern, small black or olive leech pattern, callibaetis nymph pattern, or midge pupa pattern under an indicator.  Springfield Reservoir is also fishing very well. Try the same strategy as given above for Daniels, and don’t overlook trying in front of the culverts.  Conditions at Treasureton Reservoir are being monitored because of the impact of “Johnny Appleseed” introduced largemouth bass on rainbow trout population. Being considered, amongst other options, is whether or not to chemically treat the reservoir to regain its renown as a trophy rainbow trout fishery.  IDF&G Southeast Region personnel in Pocatello would appreciate your input.


Franklin County Lakes & Invasive Species Update

A big story this spring in Franklin County has been the threat to close access to lakes because of the concern of invasive mussels. The situation seems to be constantly evolving, but here is the most current information as we have heard it. The whole situation is very confusing, so interpret this information as you wish, hopefully things are clarified here shortly.

All Franklin County Reservoirs: No ballast compartment boats allowed (wake board boats)

Twin Lakes : $5 launching fee, all watercraft using Twin Lakes must have been recently inspected by an inspection station operated by and for the ISDA and have in its possession written certification. You have to stop at Twin Lakes e to show this.

Glendale Reservoir: The barricades will be open tomorrow May 15 at 7:00 a.m. A verification checkpoint will be staffed 7 days a week from 7 am to 7 pm The cost for verification per watercraft will be $10.00 for Franklin county residents and $20.00 for out of county. The license plate of the tow vehicle and driver license will prove residency. No cash accepted just debit/credit cards and local checks.
The verification staff will be asking for proof of a ISDA inspection form/passbook for any watercraft that has left the county AND a 2016 invasive sticker attached to vessel or Idaho boat registration. The ISDA form must then be displayed on the dashboard of tow vehicle. County residents need to visit the ISDA station within 5 days of launching or have an ISDA trailer/boat orange tag.

ISDA stations are open all daylight hours. One is located at Highway 91 in Franklin City. Others at state line roads throughout Idaho.”

These are the two main lakes we have heard information about. You can safely assume that all lakes owned by the Twin Lakes Canal company will have these regulations in place.As of this writing, nothing has been posted or made known to us about Treasureton Reservoir.

Speaking of Treasureton…… For those who fish Treasureton, this is a big year for the lake. For several years the Fish and Game has been monitoring the situation at the lake with illegally introduced Largemouth Bass. There is talk of poisoning the reservoir this fall and starting over. We have been talking to biologist Dave Teuscher about this and have mixed feelings. Here is a message from Dave regarding the situation;

“We have been considering a treatment since bass were illegally introduced about 10 years ago. As you know, we have many bass fisheries in Franklin County and Treasureton Reservoir is managed as a trophy trout water. I am preparing a data summary for the reservoir that shows the changes that have occurred in the fishery and what actions IDFG has completed to limit bass expansion (e.g., no harvest or size limit on bass and moving bass from Treasureton to other bass fisheries).

We plan to have that summary done in the next week or so. Please check back with me for a copy.

Prior to making a final decision, we will hold a meeting in Preston to discuss options. I will also be trying to meet with the irrigation company to get their input. The irrigation company has been excellent to work with and very supportive of the fishery.”

We will be sure to update conditions as they progress, as well as when this meeting will take place. Dropping an email to the Idaho Fish and Game would be a great way to voice your opinion as well.



Stillwater 5-16-16

Not a whole lot has changed from our previous stillwater post except damsel nymphs are starting to become more active on the bottom of some of our lower elevation lakes. Water temps on most area reservoirs is hovering in the 55-60 degree range, so if we can get a string of warm weather days things should really get going. Some of the best fishing of the year is when damsel nymphs become active on the bottom and begin moving around. This doesn’t always mean you will see the adults, but having plenty of damsel nymphs on you in the next couple weeks would be smart. Fish these nymphs close to the bottom in 4-15 ft of water either by sinking line or indicator and hang on……….


Stillwater 5-4-16

Fishing is starting to pick up on all area reservoirs open to fishing. Daniels, Chesterfield, Springfield, Hawkins, etc…. Most good fishing has been on indicators fishing with Chironomids in the deeper water. Focus on water around the 10-20 ft range, start on the bottom and work your way up from there. Fish will often be suspended this time of year to intercept chironomid pupa on their way to the surface. Patterns like the chromie size 12-14, black sally 12-14, summer duck pupa 12-14, and the bungie buzzers in 12 have been effective. Leech fisherman are still finding some action fishing shallow early and late and out deep during the day. Use an intermediate in the shallow stuff and a type III out in the deeper water. Any dark leech patterns should produce well. Fishing should only continue to improve as the water warms up so be sure to check back often for reports.


Still Waters 5-3-16

Still water fishing pressure will really increase as we warm up this month. In preparation for this IDF&G has released their stocking plan for the region. Here are some highlights from it with respect to numbers of rainbow trout to be released sometime this month.

Ashton Reservoir 1300, Blue Creek Reservoir 2000, Harriman Fish Pond (dam has been repaired, so isn’t dry anymore!) 1500, Horseshoe Lake  1500, Island Park Reservoir 2400, Mackay Reservoir 4200, Ririe Reservoir 6700, Sand Creek #1 3500, Sand Creek #4 1500, Teardrop Lake 800, and Jim Moore Pond (Roberts Gravel Pond) with 1800 tiger trout.

View the entire plan on the IDF&G’s web site Upper Snake Region page.




Still Waters 4-16-16

Ice is off all irrigation reservoirs south and east of Pocatello. All we need now is a bunch of experiences to assemble a report. Blackfoot River Reservoir is not free of ice as of today. It is best to try Springfield Reservoir during week days to minimize crowding. Fishing success there has been “on and off.”  Midge pupa patterns under an indicator at taking depth or slowly trolled patterns such as Randy Randolph’s BLM can bring interest from hold-over rainbows.


Still Waters 4-5-16

Ice is off Daniels Reservoir, but it is a bit soon for an accumulation of fishing experience.  Presenting midge pupa patterns under an indicator might be a good strategy for now.  Some of the Chesterfield Reservoir shoreline is free of ice, so it will be ice-free in a matter of days. No word on Twenty-Four Mile Reservoir yet, but being a bit higher in elevation than Chesterfield Res., ice-out progress is usually the same or a bit slower there.  Fishing success on Springfield Reservoir varies day to day. Midge pupa under an indicator and small leech patterns work time to time.   Week-ends can be a bit crowded there, so Mondays through Thursdays offer a better choice of water to fish.


Still Waters 3-26-16

Most of our lakes and ponds remain iced over or just beginning to lose ice.  When we learn of any becoming ice free and fishing well, we will post such information here.


Still Water 10-24-15

Even though water is low in both places, fishing at Chesterfield and Twenty-Four Mile Reservoirs  remains good.  You will have to track through some mud to reach water at Twenty-Four Mile. Daniels Reservoir still offers the best still water fishing in the irrigation reservoirs. Weeds are breaking up on Springfield Reservoir making for more water to try. Midge pupa under at taking depth under an indicator works very well on all these, but water and atmosphere cooling off signal to fish to get “more for the bite.” That means leech and nymph patterns become more effective.


Still Waters 10-17-15

Several of our irrigation reservoirs continue to have good fishing. Although water at Chesterfield Reservoir is low, boats can be launched. Fish are in good conditions there and, as is the case at Daniels, are taking midge pupa under an indicator as well as damselfly nymph patterns. A pleasant surprise is that Hawkins Reservoir is fishing quite well using the same techniques. Midge pupa patterns presented under an indicator always seem effective at Springfield Reservoir. Blood worm patterns are producing around Island Park Reservoir submerged springs. Things are changing though. As we cool off, fish will seek better sources of easy protein. That means presenting leech patterns on intermediate lines will become increasingly effective.