Fishing Season: April through October

Upper Gunnison River - CO

Fishing Outlook & Conditions

Water Temp:

52

Willowfly Anglers's Tip of the Week

The Gunnison River is hovering around 1400 CFS - 1500 CFS here at Almont. In the city of Gunnison, it is hovering between 1300 CFS - 1100 CFS, and at Riverway from 1500 CFS - 1200 CFS. The entire stretch from Almont to Blue Mesa is floatable and has been fishing fantastic (keep your eyes open down river for strainers and low bridges!). We are seeing a downward trend in the flows over the last week with small pulses from the consistent rain, but the river is running fast with improving visibility as the day progresses. We are seeing Bugs and Rising fish! The Caddis hatch on the lower Gunnison (CR 32 to Wilson's Landing) has been enormous with enough caddis on the water to look like oil slicks! We were throwing size 14 Caddis and having some success, but seeing more production on the nymphs such as the Gold Ribbed Hares ear, HDA variant, RS2, Pats Rubber legs, and the squirmy worm. Fishing the slower pockets deep should produce some good fish! The Golden Stones are starting to make an appearance as well!!! The Town Stretch (Shady Island to Whitewater Park) is also seeing a strong caddis hatch in the morning to mid day with some Yellow Sally mixed in. While it's not full dry fly season, we are seeing fish rise to caddis patterns as well as a few eats on the Chubby Chernobyl, but the majority of takes are still sub surface on patterns such as the Two Tone Squirmy Worm, Rubber Legs, Two Bit Hooker, HDA Variant, RS2 and Psyco Mayfly patterns. Also strongly recommend having streamers on hand as the streamer bite throughout the day has been productive. Recommended streamers would be the Sculpzilla, Double Gonga, Double Fuego, Agent Scully in yellow, olive, black. The Upper Gunnison (Confluence to Shady Island) has been fishing good with solid nymph fishing from the boat! Patters that we have been throwing include Beaded Pheasant Tails, HDA Variant, Gold Ribbed Hares Ear, Squirmy worm and smaller midge/baetis patterns like the RS2 and Flashback Pheasant Tail. Grab the Streamer box!! The streamer bite has been hitting that sweet spot; Double Gongas, Sculpzilla in olive, black, and yellow have been working well. We are also starting to see the Caddis hatch moving up the river in the afternoon with a few rising fish along the banks. Keep looking for the slower water to hold fish as we are still in runoff but pools, slack water and the drops off of riffles are holding fish. As the water continues to fluctuate and drop (we are thinking we are on the tail end of Runoff) expect fish to start dispersing throughout the river and looking up for dry flies as we keep moving into summer! As always, have fun, respect and enjoy this amazing fishery! Tight Lines! -Willowfly Anglers

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 6/10/25

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

Techniques & Tips as of 6/10/25

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):
Tunghead Hare's Ear Flashback Grey 18-24
Bead Head Rubber-Legged Orvis CJ Silver 16-20
Polish Nymph Rubber Worm Red 14
Bead Head Soft Hackle Pheasant Tail Natural 12-16
Mercury RS2 Grey 18-22
20 Incher Coffee 8-12
Muddler Minnow Red 14
Elk Wing Caddis Natural 16-22
HDA Variant Natural 10-14
Two Bit Hooker Red 16-18

Tunghead Hare's Ear Flashback

This Hare's Ear fly has it all and big trout love it.

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:

Caddis, Yellow Sally

Best Time to Fish:

11am - 4pm

Best Stretch:

Almont to Shady Island River Park

Best Access:

Curecanti National Recreation Area