Fishing Season: April through October

Upper Gunnison River - CO

Fishing Outlook & Conditions

Water Temp:

40

Willowfly Anglers's Tip of the Week

The Gunnison River is hovering around 600 CFS - 1000 CFS here at Almont. In the city of Gunnison, it is hovering between 700 CFS - 1100 CFS, and at Riverway from 800 CFS - 1200 CFS. The entire stretch from Almont to Blue Mesa is floatable, and has been fishing fantastic. Nymphing has been the most productive, and overcast days have made some great streamer fishing as well. Eggs, Jigged Hares Ear #12-14, Pat's Rubberlegs #8-12, Frenchie #16-20, Red Squirmy Worm #14, along with your favorite midge and baetis patterns will all find success. Always check the flows before you head out, as they can increase rapidly. We are seeing some bugs fluttering around, but the trout are not quite looking up yet. Here soon dry fly fishing will be phenomenal. As always; As always, have fun, respect and enjoy this amazing fishery!

Directions open in app

Map of Upper Gunnison River

Water Flow Data

Orvis-Endorsed guides nearby

Willowfly Anglers
RIGS Fly Shop & Guide Service

5-Day Outlook as of 4/30/25

The Gunnison is fishing very well. Nymphing and streamer fishing will produce the best chance of success.

Techniques & Tips as of 4/30/25

Nymphing

Local Species Available April through October

  • Fish Icon

    Trout

Willowfly Anglers's Recommended Fly Patterns

"Must-have" fly fishing patterns in descending order of importance:

Name: Colors: Size(s):
RS2 Grey 18-24
Vernille San Juan Worm Silver 16-20
Lynch's Double Dot Egg Red 14
Hot Head Euro Pheasant Tail Natural 12-16
Mercury RS2 Grey 18-22
Pat's Rubberlegs Coffee 8-12
Polish Nymph Rubber Worm Red 14
Quasimodo Pheasant Tail Natural 16-22
Egan's Frenchie Natural 16-20
Two Bit Hooker Red 16-18

RS2

A must have emerger fly pattern for any trout fisherman.

2.49

Item #067T

Buy Now

Willowfly Anglers's Recommended Gear

Description: About Upper Gunnison River

The Gunnison River begins at Almont, Colorado, where the Taylor River and East River merge to form its headwaters. The river grows in size as it flows down through the Gunnison Valley and into Blue Mesa Reservoir. This is the first of several dams as the Gunnison continues its flow through the Black Canyon and eventually into the Colorado River. Our section of the Gunnison River, the upper Gunnison, is from the headwaters in Almont to Blue Mesa Reservoir. The East River is a freestone river which drains out of Emerald Lake, which is located at 10,500 feet in the Rockies near Crested Butte. So the upper Gunnison is impacted by both snow-melt and the controlled releases from Taylor Reservoir. The Gunnison is best fished from a boat in the early season during high water. There are also plenty of public access points for wading the river during summer and fall. The Gunnison River contains a very high density of trout, including browns, rainbows, and cutthroat. There are long riffles and runs, and deep pools which hold large trout. There are good hatches of stoneflies, caddis, and mayflies during the season. The peak season is from mid June to late September, and fall fishing can be spectacular on the Gunnison. The fall kokanee salmon run brings hard-fighting kokanee salmon up the Gunnison River from Blue Mesa as they run to the Roaring Judy fish hatchery on the East River. There is a catch-and-release season for kokanee from August 1 to October 31. Big trout will follow the salmon up to feed on their eggs. A 9-foot 5-weight fly rod is a good all purpose choice for the Gunnison River. A 6-weight rod can also be used for heavier nymph rigs and/or for streamers.

Nearest Airport:

Gunnison-Crested Butte Airport

Hatches:

Midges

Best Time to Fish:

11am - 4pm

Best Stretch:

Almont to Shady Island River Park

Best Access:

Curecanti National Recreation Area