Your Guide to Outdoor Colorado!
Colorado River Hatch Chart
| Colorado River Mayfly Hatch Chart |
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Common Name
Genus/Species |
April |
May |
June |
July |
Aug. |
Sept. |
Oct. |
Nov. |
"Trico" Spinner
Tricorythodes minutus |
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Blue-Winged Olive
Baetis |
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Pale Evening Dun
Epeorus albertae |
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Green Drake
Ephemerella grandis |
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Pale Morning Dun
Ephemerella inermis |
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Mahogany Dun
Leptophlebia gravestella |
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Tiny Olive Quill
Psuedocloeon futile |
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Quill Gordon
Rhithrogena morrisoni |
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Red Quill
Rhithrogena hageni |
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Flies to use: Depending on the hatch. Best performers are.
- Dry: Red Quills, Para Adams, Elk Hair Caddis, Blue Wing Olive, Hoppers, and Stimulators
- Nymph: Hares Ears, Prince Nymph, Buckskin, Pheasant Tails
When to Fish: You can fish and produce on this river all year long. Hot times are early spring, April and May, and late summer, September and October. Avoid run-off in late May through June. This year run-off is not a factor.
Hatch Report: Caddis flies are hatching in numbers currently. Some evening Baetis, large numbers of large stoneflys.
River Rating: Eight Trout. Short of a heavily stocked and managed tail water this is as good as it gets. Given the opportunity, this is the only thing I prefer to fish
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