Williams Fork River
Rob Herrmann Photography

Williams Fork River

Difficulty Intermediate/Advanced
Ideal Days To Fish 3/8 & 3/9

Weekly Report

Report DateMarch 4, 2021
The Williams Fork is in great shape. Flows, while lower than ideal, have held steady and mild temps have led to strong hatch activity. While the mornings continue to be slow with sub-freezing overnight temps, the late mornings and afternoons have been great! Nymphing with small and imitative midges continues to produce the best results and trout are holding predominantly in the deeper pools and slow runs. You’re going to want to lead with a bigger searcher/attractor fly like a Jig Hook Rainbow Warrior, Jig Hook Prince Nymph, Flashback PT or Mini Leech as air pressure will be on the lower end most of the week and trout will feed opportunistically on bigger bites. Trail any of the aforementioned lead flies with one or more smaller larva patterns like Tube Midge, Miracle Nymph or Jujubaetis. Otherwise, go with an emerger as your last fly.

Recommended Flies

River Flow

Flow Region

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 off 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 its 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 tailwater 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.