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Fishing Information

Williams Fork River

89 cfs
3 mph
10 °F
Weather @COLORADO BASIN - Updated January 18, 2021 - 7:01pm by OpenWeather

Current River Flow Updates

Latest update: 1/13/21 --

Flows on the Williams Fork are around 88.0 cfs. These flows are excellent for the Williams Fork. This is the time of year you'll begin fishing mainly midges on the tailwaters. Nymphing and double dropper fishing have also been productive although dries will start to slow this time of year. When nymphing, you'll want to fish an attractor up top followed by one or two smaller nymphs. Try some sort of stonefly pattern (#14-18), caddis larva, or midge pattern (#18-24) underneath. Some of our shop favorites are Black Beauties, Neon Nightmare, Mighty Midge, Rainbow Warriors, Cardinal Midges, Pheasant Tails and Buck Skins and Egg Patterns. On the warmers days look for midge hatches.

Historical River Flow

River Information

The Williams Fork river is another tributary of the Colorado worth exploring. The river is divided by Williams Fork Reservoir. The upper section is a classic high mountain stream ideal for a small 1-3wt fly rod and a box of bushy dry flies. The tailwater section below the reservoir is where most people head when fishing the "Willy's Fork". This tailwater can be quite susceptible to annual flows and the fishing can be very tough during low water years. During normal to high water years, the fishing can be superb, offering anglers the chance to catch sizeable, hard fighting Rainbow and Brown trout. This tailwater section is fairly short, coming in at about 2 miles long, before it reaches the Colorado River in the town of Parshall.

Seasonal Conditions

The Williams Fork can be fished 12 months a year, however, Summer and Fall will certainly be the most productive seasons. Come summer, hatches abound and the dry fly fishing can be phenomenal. Mayflies, Caddis, Terrestrials, and small Stoneflies will all catch fish in both their dry and nymph varieties.

Additional River Information

Williams Fork River below Williams Fork Reservoir

COLORADO BASIN River Gauge View Detailed Information

  • Flow 89 cfs
  • Wind 3 mph
  • Temp 10 °F
  • High/Low 8/26

River access

The tailwater section of the Williams Fork can be accessed in two locations - both of which require approximately a 20 minute hike so make sure to bring some hydration. The river can be accessed off Hwy 40 at the town of Parshall by crossing the Colorado River and walking to the confluence. The other option is to head down County Rd 3, just east of Parshall, like you're headed to Williams Fork Reservoir. There is a DOW parking area on the west side of the road, approximately 1/3 mile south of the Colorado RIver. From here, follow the foot path to the river which is about 1 mile away.

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