Williams Fork

Fly fishing angler casting at Williams Fork during autumn with gold-leafed trees throughout the background

14 Day Forecast: Expect flows to continue to rise from spring run-off

Effective Patterns:  #18 Mercury Pheasant Tail, #14 San Juan Worm, #18 Buckskin, #14-18 Bead Head Breadcrust, and #20 Sparkle Wing RS 2.


Williams Fork – Below Williams Fork Reservoir

Flow: 652 ft3/s
Temp: 39 °F
Wind: 3 MPH S
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Fly Fishing Conditions & Tips from Pat Dorsey for the Williams Fork River

The Williams Fork River is a top-notch fishery of its own. This beautiful fishery is nestled between the Williams Peaks and Middle Park and is truly a fly-fishing paradise. The two-mile stretch between the upper boundary of the Kemp Unit and the confluence of the Colorado River is a mixture or riffles, runs, and pocket water with one of the best populations of brown trout in the “west”. A 30-minute hike to the river keeps the crowds to a minimum. Anglers can catch trout with a variety of methods including nymphs, streamers, and dry flies. The hatches include caddis, blue-winged olives, midges, Tricos, and red quills. Being a tributary of the Colorado River-spring and fall-spawn runs bring some “lunkers” into the stream. Ideal flows for the “Fork” are between 100 and 250 cfs. The regulations are flies and lures only and all fish must be returned to the water immediately.

The Williams Fork is one of the prettiest places on the planet. This Williams Fork is proof that trout don't live in ugly places.

Tips & Other Information:

Flows are getting a bit on the high side right now.  San Juan worms, trailed by Buckskins and Mercury Pheasant Tails are  your best bet right now. Look for hatches of midges, blue winged olives, and caddis. The Colorado River is experiencing spring run-off, so you’ll need to access the river from the parking lot off County Road 3. The river is still fishable, but conditions are getting tough with the high water.

Pat Dorsey Fly Fishing