Insect | Size | Begin | End | |
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Midges | 20-24 | January 1 | December 31 |
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Golden Stone | 8-10 | May 15 | July 31 |
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BWO | 16-20 | March 15 | May 15 |
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Trico | 18-22 | July 15 | October 15 |
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BWO | 16-20 | August 15 | October 31 |
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PMD | 16-18 | June 15 | August 30 |
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Hoppers | 6-12 | July 15 |
September 25
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Caddis | 10-18 | May 10 | September 30 |
Visit our Colorado Flies by Location page here: