Colorado Fishing Regions

Detailed weekly reports for every major river and fishery in Colorado โ€” updated every Monday.

๐Ÿ“

10 Rivers. One Weekly Report.

Colorado's best trout rivers span 4 distinct regions โ€” Front Range tailwaters, Western Slope classics, mountain freestone streams, and high-country gems. Each has its own character, regulations, and seasonal window. Use the filters below to find your water.

Filter:

South Platte River

Deckers & Cheesman Canyon
Excellent
Flow
142 cfs
Temp
41°F
Clarity
Clear

Cheesman Canyon continues to fish exceptionally well this week. Midges are the primary game โ€” size 20โ€“24 Griffith's Gnats and RS2s producing steady takes in slower pools. BWOs appearing mid-afternoon on overcast days.

Rainbow Trout Brown Trout Cutthroat Trout
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Frying Pan River

Basalt, CO
Excellent
Flow
98 cfs
Temp
39°F
Clarity
Crystal

The Pan below Ruedi Reservoir is fishing lights-out. Consistent tailwater flows keeping things stable. Mysis shrimp patterns and small midges dominating the catch. Sight-fishing opportunities in the catch-and-release section.

Rainbow Trout Brown Trout
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Arkansas River

Salida & Brown's Canyon
Good
Flow
312 cfs
Temp
38°F
Clarity
Good

Pre-runoff conditions on the Ark are solid. Nymphing with Pat's Rubber Legs and Flashback Pheasant Tails producing well in the riffles. Expect brown trout to be aggressive in deeper runs and pocket water.

Brown Trout Rainbow Trout
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Blue River

Silverthorne & Dillon
Good
Flow
86 cfs
Temp
36°F
Clarity
Clear

The Blue below Dillon Dam is fishing well with low, clear flows. Size 22โ€“26 midges are the ticket. Focus on the tailwater section between the dam and Green Mountain Reservoir for best results.

Rainbow Trout Brown Trout
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Cache la Poudre River

Fort Collins & Poudre Canyon
Fair
Flow
68 cfs
Temp
35°F
Clarity
Clear

Winter conditions still prevailing in the canyon. Low water and cold temps make for tough but rewarding fishing. Target sun-warmed pools in the afternoon with small midge clusters and Blue-Winged Olive patterns.

Brown Trout Rainbow Trout Brook Trout
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Colorado River

Upper, Kremmling Area
Good
Flow
245 cfs
Temp
37°F
Clarity
Good

The upper Colorado near Kremmling is fishing well for late March. Good streamer water โ€” Woolly Buggers and Slumpbusters working the cut banks. Nymphing productive midday with stonefly and caddis larvae patterns.

Rainbow Trout Brown Trout
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Gunnison River

Black Canyon & Gorge
Excellent
Flow
280 cfs
Temp
40°F
Clarity
Clear

The Gunnison Gorge is on fire right now. Big browns coming out of winter holds and hammering streamers. The hike-in access keeps pressure low. Stonefly nymphs and San Juan Worms also producing quality fish.

Brown Trout Rainbow Trout
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Roaring Fork River

Aspen to Glenwood Springs
Good
Flow
175 cfs
Temp
38°F
Clarity
Good

The Fork is fishing well between Basalt and Carbondale. Pre-runoff flows are ideal for nymphing deeper runs. BWO hatches starting to pop in the afternoons. Dry-dropper rigs effective when you see rises.

Rainbow Trout Brown Trout Whitefish
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Dream Stream

Elevenmile Canyon & Spinney
Fair
Flow
52 cfs
Temp
34°F
Clarity
Clear

Spinney Mountain is still partially iced, but the Dream Stream section between the reservoirs is open and fishable. Slow, deliberate nymphing is the game โ€” egg patterns and small midges near inlet areas holding fish.

Rainbow Trout Cutthroat Trout Northern Pike
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Rio Grande

South Fork, CO
Fair
Flow
115 cfs
Temp
36°F
Clarity
Slightly Off

Early snowmelt starting to affect clarity on the Rio Grande. Still fishable but pick your windows carefully โ€” mornings before melt begins are best. San Juan Worms and egg patterns producing in the deeper pools near South Fork.

Brown Trout Rainbow Trout
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