Williams Fork (Parshall)
● Live flow from USGS · water temp from sample (no temp sensor at this gauge)
~23 cfs (Cutthroat Anglers 6/15: flows low at Willie's Tailwater) — dropped back from ~66 cfs; low/clear and technical, fish moving around as flows change · cold deep-reservoir release keeps it heat-proof
Cutthroat Anglers 6/15: 'Williams Fork running ~23 cfs — flows low at Willie's Tailwater. Focus on baetis, midge and small caddis imitations for your bottom fly when nymphing; expect fish moving around if flows keep changing.' Low/clear means technical small-fly presentations. Hike ~1 mi from CR-3 lot. C&R artificial only. Light nymph rig: RS2 gray #18-22, small midge larva, BH Pheasant Tail #16-20, small perdigons, Poison Tung #18-20. Today (Wed) ~73°F mountain pocket, mild and breezy with an isolated late-day storm — the cold deep-release tailwater fishes well all day; work the warmest hours and shaded runs.
Flows DROPPED back to ~23 cfs (CTA 6/15: 'low at Willie's Tailwater'). Status moved from Fishing Well to Fair / Picky — low/clear and technical, fish moving around as flows change. Baetis, midge, small caddis the play; streamers/indicator rigs in the warmest hours. RS2, small midge larva, PTs, perdigons; 5-6X. Cold deep-reservoir release keeps water temps consistent and heat-proof. Driving access fully restored. Mountain pattern: today (Wed) ~76°F mountain pocket, sunny and dry (Silverthorne area is the driest of the group); mostly sunny ~73–76°F through Thu with only slight storm chances.
Fly-shop reports
2 shops report on Williams Fork (Parshall)Reports are pulled live from each shop when you open this river. Shop wording varies — tap through for the full, original report.
Fishability Score breakdown
How today's 88 is built. Flow 35% · Water temp 25% · Weather 20% · Hatch 20%.
Weather & hatch are placeholder factors until wired to live sources.
What to throw — by time of day
Pat's Rubber Legs (anchor) + Poison Tung #18, RS-2 #18–22, small Pheasant Tails, eggs #14
JuJu Baetis #18, Sparkle Wing RS-2 #20, San Juan Worm #14, small Sculpin/Bugger swung
Midge cluster #20, Adams #20, streamer swung in low light
Seasonal hatch report
Fall — BWOs & Streamers
Cooling water wakes the fish up. Blue-Winged Olives return on grey afternoons, and pre-spawn browns chase streamers hard.
Sources & last updated
| Source | Feeds | Most recent update |
|---|---|---|
| USGS 09038500 | Williams Fork (Parshall) | Sep 14, 11:45 AM MT · flow live |
| Hatchwise Seasonal Guide | Hatch & fly guidance | Jul 5, 12:00 PM MT · editorial |
| Cutthroat Anglers | Shop fly report | Live — see report |
| Trouts Fly Fishing | Shop fly report | Live — see report |
Live flow & water temp come straight from the USGS Instantaneous Values service; timestamps are the gauge's own reading times (Mountain Time).