Take the guesswork out of fly selection
Learn what trout are actually eating, why they are eating it, and how to choose the right fly with confidence.
Led by aquatic entomology expert and lifelong fly angler Patrick Tennyson, this class combines a classroom deep dive with hands-on insect collection and identification on local rivers.
What You'll Learn
Identify Key Insects
Learn the major aquatic insect families trout rely on throughout the year.
Understand Life Cycles
Discover when insects are most active and available to feeding trout.
Match Flies Correctly
Connect natural insects to the patterns in your fly box.
Read River Habitat
Understand where insects live and how trout feed in different water types.
Morning Classroom Session
Start with Patrick Tennyson at the Blue Quill Angler fly shop for a practical introduction to Rocky Mountain aquatic insects, seasonal hatches, habitat requirements, and fly pattern selection.
Afternoon River Session
Head to a local river to collect and identify aquatic insects in real stream environments and compare them to proven fly patterns.
Meet Patrick Tennyson
Patrick brings together more than 35 years in environmental education, advanced knowledge of freshwater aquatic entomology, and over 45 years as an avid fly fisherman.
He is the former long-time President and CEO of Butterfly Pavilion in Westminster, Colorado and has presented fly fishing entomology programs for fly shops and major shows across the country.
Patrick is also a former professional fly-fishing guide, currently sponsored by Simms Fly Fishing and Umpqua Feather Merchants, and is a proud member of the Blue Quill Angler team.
Make Better Decisions on the River this Season
Join Blue Quill Angler and Patrick Tennyson for a practical, hands-on class built to help you understand what to imitate, when to fish it, and why it works.
Price: $225 per student
Class Dates:
- Saturday June 20, 2026
- Saturday July 11, 2026
- Saturday August 15, 2026
- Saturday September 19, 2026
To book, please call (303)674-4700 Option 2, or you may book online by clicking the button below.