Absolutely beautiful, fat 19 1/2" brown caught by Rich Strolis this month. He was doing dry/dropper, trailing a #16 beadhead nymph about 18-24" off the back of a dry fly. It's a great way to prospect shallower water & during hatches when trout are looking up. He did well targeting choppy riffle water. Tons of trout set up in calf to mid-thigh deep riffles/broken water in the summertime. The cool thing about dry/dropper is that you combine dry fly style fishing with the deadliness of nymphing, and while most days the nymph catches the majority, the indicator dry will usually pick some up. Just make sure to use a buoyant dry (Stimulater, big Isonhychia, foam-bodied patterns, etc.) and a nymph that isn't overly heavy. Cover lots of water, this is generally a prospecting technique.
The river is 331cfs through the Catch & Release area, with 304cfs from the dam up in Riverton- this is an excellent flow. Water temps have been cool (it reached low 60's in Catch & Release area Thursday, and in the late evening it was 51 degrees in Riverton), enabling you to fish from the dam all the way down to Unionville right now. Streamers are effective during low-light conditions (early & late or cloudy/rainy days), play with color, size & presentation for best results. You can also try pounding shady banks with them in the daytime- look for structure where big trout hideout in the daytime, features such as cut banks, downed trees, overhanging limbs, big rocks, etc.
Isonychia are my all-time favorite hatch, it is a big bug (#10-12) that fishes great with dries, nymphs & wets, and it gets big fish feeding on top in the daylight, often in fast, shallow water. Just like with other hatches, warmer days will push things later, and mild/cloudy ones will make things happen earlier. Beacause it's on the water for months, because it's big, and because it hatches in faster, broken water, big trout love this bug, and it's one hatch where you can actually blind fish the dry and bring fish up to the surface. On average lately, heaviest hatching in Catch & Release section has been about 5-7pm, but it can vary from day to day, and other sections can see it earlier or later.
Currently effective nymphs include: Hot Spot Nymphs #14-18, Wade's Clinger Nymph #14-16, Olive nymphs #16-20, Yellow Sparkle Prince #14-18, Sulfur Nymph #16, Caddis Pupa & Larva in both tan & olive/green #12-18, Jig nymphs #10-16, Pheasant Tails #16-20, Isonychia Nymphs #10-12, Fox Squirrel Nymph #10-14, Prince Nymph #10-18, and Golden/Brown/Black Stoneflies #6-12 are all working well. Streamers are working well in the early morning and again toward dark- look for either low light or murky water for best results during this time of the year on the Farmington. Mice, Rats and giant Streamers are working after dusk. -Torrey