Monday, April 28, 2025

Monday 4/28/25 Farmington River Report: Improved Hendrickson activity!

Store Hours:

8am-5pm Monday through Friday, 8am-5pm on Saturday & Sunday. These will be the store hours through April.

Pictured up top is Derrick’s client Paul Woodcock with a great male brown trout.

We have tons of books at the moment- we received a bunch of used books as well as a big order of new books that arrived recently. Also, a bunch more used rods & reels came in, we have a BIG inventory of used stuff. Received big orders from Scientific Anglers (fly lines) & Fulling Mill (flies, boxes, beads, hooks).

We are once again carrying the very popular Frabill Landing Nets. They are very reasonably priced, lightweight, and capable of netting large trout.

Diamondback Generation IV Euro nymphing rods are
now available. I know many of you have been eagerly anticipating them, and now we have the full line-up, minus the 10' 7" #4 (not available yet, probably in early/mid fall). The models we have include 10' and 10' 7" lengths in #1, #2, #3, and 10' 7" in #6 & #7. These rods are very nice and have been selling well.

After walking through the woods, check yourself for ticks- they are very active now.

Monday mid afternoon Flow Update:
The dam release in Riverton was reduced by 17cfs at 9am this morning.

Monday morning 4/28/25 River Report:
The total flow on the river below the Still River and in the Permanent TMA/Catch & Release (C&R) is 400cfs & dropping, the historical median flow for today is 437cfs- today’s flow is a medium water level. Riverton is 170cfs between the dam and the Rt. 20 bridge/Riverton Self Storage (historical median flow for today is 251cfs). I would not be surprised to see a small flow cut at the dam later today (it’s based in part on the average inflow the preceding week). The Still River is adding in 230cfs and dropping a little below that, historical median flow is 186cfs. Riverton water temp is 44 degrees this morning, it reached 48 degrees yesterday afternoon. Downstream water temps are higher, running high 40’s to 60 degrees of late. Peak water temps are normally mid to late afternoon, with warm sunny days seeing the biggest temp increases. Unionville USGS gauge is reading 722cfs & dropping fast, historical median flow for today is 761cfs.

Rain over the weekend was a welcome/needed thing, and it put flows around the state back to normal. The trees & bushes are all leafing out rapidly and the landscape is turning green, this is sucking up a lot of water now. Really feels & looks like spring now. We are sitting pretty at a total flow of 400cfs and dropping as I write this Monday morning. Despite crappy conditions Sunday (colder, very windy, cloudy, elevated flows), the Hendrickson hatch was the best we’ve seen this year, and the trout responded with surface feeding. Had a lot of good reports late on Sunday, with many anglers catching quality fish on the surface during the hatch. Today (Monday) could be a good one for spinner falls- they need mild air temps, minimal wind and no rain. With a high of 74 degrees, sunshine and only 5-10 mph wind- that’s about perfect for spinners. Look for them in the air over the riffles, the females have prominent bright yellow eggs sacks. Hendricksons are as far downstream as Collinsville, and upstream to about the Campground. Warm temps today & Tuesday (74-80 & sunny) should create some good hatching, and also push the bugs a bit further upriver each day. Be prepared with nymphs, wets, dries, emergers, and spinners- see paragraph below for detailed info on the hatch and how to fish it. When they aren’t rising, which is normally most of the day, be prepared to fish subsurface with various nymphs, streamers, and wet flies/soft hackles.


Hendricksons are a #12-14 mayfly that hatches in the afternoons, and can bring some large trout to the surface. They have gray upright wings, 3 tails, the females have a tannish body with tinges of olive/brown/pink/gray, and the males are more of a brown color. The hatch works it’s way upstream. Hendricksons are typically a mid/late afternoon hatch, with somewhere between 1-2pm and 4-5pm being the normal time frame. The hatch can run anywhere from about 45 minutes to 2+ hours. Make sure to have both dun & emerger patterns for the afternoon hatch- often better fish will key on emergers because they are more vulnerable & easier to catch. Spinner falls (egg-laying) are an evening affair according to the books, but on the Farmington River I’ve seen them anywhere from mid to late mornings, concurrent with the afternoon hatch, and also in the traditional evening/dusk time frame. Spinners falls require dry weather, mild temps, and minimal wind. Cold or windy eves often lead to mid/late morning spinner falls the following morning, well before the “hatch” anglers are even on the river. Many of my biggest Hendrickson dry fly fish have come during spinner falls- they are a helpless meal that cannot get away, and often overlap with the preferred low light period that big trout feed in. Spinners are all rusty brown, and the females have a bright yellow egg sack at the end of the abdomen. Look for them in the air over riffles, flying up & down as they slowly work their way down to the water. Nymphs resembling the Hendricksons can be effective, especially in the 2-3 hours preceding the hatch. Hatches don’t always mean rising fish, so be prepared with nymphs. Think patterns in a medium to dark brown, #12-14- the nymphs darken as they get near hatching time. You can use a specific imitation, or something more generic like a Pheasant Tail or Frenchy. They are bulkier than some other nymphs, so if you tie them don’t make the abdomens too skinny, and make a robust thorax. FYI Hendricksons are close cousins to Sulfurs, varying mostly in size & color. Wet flies & soft-hackles can have their moments during this hatch.

Hendrickson Dry Fly Tips:
-Have assorted patterns in #12-14, trout can be unusually particular during this hatch, and I don’t know why that is.
-Use a longer leader (12’ or longer) with a long tippet section (at least 3-4’, and up to 6 to 8 feet). This helps a LOT to get a drag-free presentation, which is absolutely critical to catching fish.
-Where possible, present down & across to the trout using a Reach Cast. This shows the trout your bug fly first and is the best angle for big, hard to catch fish.
-Emergers and patterns with shucks will often outproduce standard dun patterns during the afternoon hatch. Emergers & cripples cannot escape and are an easy meal, especially for bigger, more experienced fish.
-Make sure to have some spinner patterns, big fish love them (easy meal that is spent on the water and cannot escape). Spinner falls require air temps about 60 degrees & up, minimal wind, and no rain. If it’s cold or windy in the evening, they often fall in mid to late morning the next day. Spinners mate in the air over riffles and fall there. Both sexes are rusty brown, but the females have a bright yellow egg sack, so make sure to have some that imitate the egg sack.

Don’t be afraid to explore and fish new water to get away from the crowds, there are literally fish EVERYWHERE. The further you go downstream, in general the less anglers you will see- especially if you walk 5-10 minutes away from the easy access points. Most anglers also focus on the famous named pools, and skip the water in between. The water outside of the Permanent Catch & Release/TMA gets less pressure for the most part. FYI, many anglers don’t start until noon or 1pm, and then they leave at 4-5pm when the afternoon hatch is done. We are on the tail end of the Blue Winged Olive/Baetis hatch. A smaller gray/brown Caddis has been hatching in the afternoons, but for the most part trout don’t seem to surface feed on it. Other than the afternoon hatches, it’s been mostly subsurface with nymphs & streamers.

Various nymphs averaging #14-20 have been working well on recent stockers, holdovers & wilds. Try #12-18 Pheasant Tails/Frenchies, #12-14 Hendrickson nymphs, #16-20 BWO nymphs, #14-18 olive Caddis larva/Walt’s Worms, Mops, and flies with pink beads (Walt’s/PT’s/Hare’s Ears). Junk Flies (Eggs, Mops, Worms, Weenies) can be particularly effective on the recently stocked fish before they figure out what real food looks like, sometimes vastly outproducing traditional nymphs. And some days the wild browns like to eat the Junk too. They are very much a hot or cold fly, not much in between. If one of your nymphs is a Junk Fly, pair it up with something smaller, drabber & more natural (Pheasant Tail, Walt’s Worm, Hare’s Ear, etc.). Streamers are also a good choice, a great way to cover a lot of water in a hurry, and also be able to fish the water that you cannot nymph. Make sure to cover lots of water, play with streamer color/patterns, and vary your retrieves. Try tan, olive, white, and black.

Fishing reports have varied widely, depending on the angler, river section fished, time of day, and methods/flies used. Overall we are getting a LOT more good reports recently. Dry fly anglers have come into their time now. Nymphs & streamers have been producing most of the fish you see in this report, but now is a good time to catch a big trout on a dry fly. Expect to work for the high quality bigger holdover & wild fish. If you get into a pod of recently stocked fish, you can do some big numbers with subsurface flies. It pays to move around and cover water currently. It one section is not producing, don’t beat it to death, move to a new area. The big wild browns are the hardest to fool, you need to do everything correctly. They’ve seen it all, and they spook easily. They are also very tuned into real bugs & minnows.

The Farmington River was stocked recently on the entire river, including the Permanent TMA/C&R last week (on Thursday 4/17 and Monday 4/21). Most sections have been stocked twice, with more to come in the very near future. FYI, 20% of the trout they stock throughout the state are over one foot, with some much larger. The Permanent TMA/C&R gets 1,000 fat Two Year Old Browns that average 14-18”, and some are bigger than that.

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Dries:
-Hendrickson #12-14: mid/late afternoon hatch, as far upstream as the Campground as of 4/28, and working their way further upstream daily.

-Blue Winged Olives/Baetis #16-18: Mid afternoon hatch, near the end
-Summer/Winter Caddis #18-24: hatch is typically early to mid morning, all year long. Trout focus on the pupa first, and then as the morning progresses they normally switch to the winged, egg-laying adults.
-Midges #20-28: afternoons/eves, sunny/milder days are best


Nymphs:

-Hendrickson #12-14: medium to dark brown mayfly, can use specific imitations like a BMAR pattern or generic stuff like a Pheasant Tail
-BMAR Hendrickson Nymph #14
-Blue Winged (Baetis) Olive Nymphs #16-18: active/hatching in the afternoons, good all year, a common item in the drift
-Caddis Larva (olive to green) #14-16: lots of these in the river (most others too), imitates the common Hydrospyche, good all year but especially in early spring
-Pheasant Tails/Frenchies #12-20: imitates a wide range of Mayflies including Blue Winged Olives, Hendricksons, small Stoneflies, and more
-Cased Caddis #10-16: good this time of year, especially during & after flow bumps
-Winter/Summer Caddis Larva #18 (yellow)- also imitates Black Caddis larva & some Midge larva
-Junk Flies (Mops/Micro Mops, Squirmy/San Juan Worms, Eggs, Green Weenie): eggs are deadly in the fall/winter/early spring, and the others are good change-up flies when the usual imitative flies aren’t producing, during non-hatch times, cold water, on recently stocked trout, or during higher/off-color water.
-Attractor Nymphs #14-20: such as Sexy Waltz, Rainbow Warriors, Frenchies, Prince, Triple Threats, Pink Bead Walt’s Worm/Pheasant Tails/Hare’s Ear, etc. Often work better than drabber, more imitative flies.
-Midges #18-22 (black, olive, red): Zebra Midge, Flash Midge, Red Iris Midge.

Streamers:
*We have a lot of new streamer patterns from MT Fly Co in the bins.

***Don’t neglect streamers! - top colors have been olive, tan, white, and black. Black is good on recently stocked trout (of which there are lots right now), during low light (first & last light), and high/dirty water.
-Jigged Streamers #8-12: various patterns/colors, deadly fished on a tight-line/Euro rig, often sorts out bigger fish. Great to use as a clean-up fly after you nymph a run.
-Ice Picks (tan, gray, white, yellow): tied by Rich Strolis, a very nice single hook baitfish pattern
-Woolly Bugger #4-12: assorted colors, try also Don's Peach Bugger
-Zonker #4-6: a classic fish catcher! In white, natural
-BMAR Yellow Matuka #6: deadly fall fly! Also standard Matuka in olive, brown
-Zuddler #4-8: one of our favorites, in olive, white, brown, black, yellow
-Complex & Mini Twist Bugger #2-6: assorted colors, very effective