Williams Fork

Weekly Overview:

February 24, 2020:

  • Technicality: 2/5

  • The Williams Fork has been fishing great over the last few days. Snow, however, has made for a tougher hike in. As a result, this tailwater has seen less angler pressure and the trout have gotten a break. The small and simple nymph rig has and will continue to produce the best results. You’re going to want to focus on midges, but don’t hesitate to try your luck at a pseudo baetis pattern, particularly in the afternoon. Elevated air pressure will leave trout sluggish and glued to the river bed. As such, get your flies deep and go with one or more flashy attractor patterns like a Rainbow Warrior. Hatch activity has been consistent with previous weeks, but comparatively low. If you see trout actively rising, don’t hesitate to rig up some dries. We prefer to go with a very small (#24- 26) Parachute Adams followed by a Griffith’s Gnat or an emerger pattern.

  • Ideal Days to Fish: Thursday, Saturday & Saturday

  • Go to flies:

    • Surface - Parachute Adams (#20-24), Griffiths Gnat (#22-24)

    • Subsurface - Frenchie (#16-20), Guide's Choice Hare's Ear (#16-20), Psycho Prince Nymph (#18-20), Pheasant Tails (#18-20), Copper John (#16-18), RS2's (#20-22), JuJu baetis (#20-22), WD 40 (#20-22), Black Beauties (#20-22), Top Secret Midges (#22-24), Mercury Midge (#22-24), Foam Wing Emerger (#20-22), Pat's Rubber Legs (#12-14), Electric Caddis (#16-18), Super Pupa (#16-18), San Juan Worm, Flossies 

      • Need flies for your trip? FlyCast has collaborated with our friends at Anglers All ​to package a dozen flies that are hot on the Williams Fork right now - Click here for hand selected flies

Credit: U.S. Geological Survey 
Department of the Interior/USGS

Detailed River Info:


The Williams Fork River a.k.a Willy's Fork, is a two mile tail water below the Williams Fork Reservoir that feeds into the upper Colorado River. The most common access point to the river requires a 20 minute walk but trust us, the serenity and beauty is well worth the hike. The Willy's Fork provides a more peaceful outing compared to the other tail water options in Colorado.The Cotton Wood Tree lined river consists of deep runs, pools and pocket water. If you're looking to spend some time on the river make sure to bring plenty of water, sunscreen and beer. 


Let us start of by saying this is hands down one of the most beautiful rivers that we've ever fished. A bad day on this river (which isn't likely), is still an amazing day because of the scenery. The Willy's Fork provides anglers with a wide variety of fishing options due to it's abundance of deep runs and pools as well as pocket water and undercut grass banks. If you're fishing for numbers, targeting the banks will be your best bet. If you're searching for the 20 - 24 in. trout, add some weight and get down deep in the pools and runs. Besides the typical Caddis and Mayfly hatches, the Willy's Fork experiences a solid Stonefly hatch similar to the Colorado River. The most common trout found in this stretch are Browns and Rainbows. 


River Access:

The tail water section of the Williams Fork is located in the town of Parshall, CO. Anglers can access the river from two locations. You can park at the Williams Fork Division of Wildlife parking lot located at the intersection of county road 3 and county road 36. Parking at this location will require a 20 minute hike to the water. If you're looking to fish from the confluence, park in the town of Parshall off of Highway 40 and wade across the Colorado River. 

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