The Williams Fork River is best known for its tailwater section, which is released from the Williams Fork Reservoir, and flows into the Colorado River a few miles downstream of its origin. The Williams Fork tailwater fishes best when it has enough CFS to entice fish from the Colorado River to run up it ( lets say between 100-200 CFS). a solid population of midges, Baetis, PMD’s, and caddis exist in the Williams Fork below the dam. Also notable are mosquito’s that develop in this area, they are second only to the mighty mosquitos of Muddy Creek. Bring DEET, cover all skin, and wear bug nets during peek mosquito season. A light nymph rig is the norm for fishing this stretch of water, although strong hatches can produce solid dry fly fishing at times. Streamer fishing can also be good here in the fall.
Flows have remained low on the Williams Fork this spring, and probably will remain that way until the reservoir starts to fill up more. Currently there is about 300 CFS going into the Reservoir and about 40 CFS coming out. The confluence with the Colorado will be the most productive section of the tailwater for the next weeks to come as, but it will also see heavy fishing pressure. Expect stonefly nymphs, Baetis, caddis larva/pupa, midges, and streamers to be on the menu.
Nymphs To Try: Pat’s Rubber Legs in black, olive, brown, and sand size 6-12, TDJ Golden Stone size 12-16, Mayhem Baetis olive size 18-20, BLM in black size 18 - 20, Sparkle Wing RS2’s size 18-20, K’s Latex Caddis Larva chartreuse size 14-18, Buckskin Caddis size 14-18, Chronic Caddis chartreuse size 14-18, and a variety of midge larva/emergers.