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  • The Fly Box
  • The Field Guide
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    Hatch Theory

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    Field Guide

    Short pieces on how to fish smarter with less gear. Read straight through, or pull one up on the bank.

    Trout and grayling
    Trout and grayling. Alfred Ronalds, The Fly-Fisher’s Entomology, 1839.

    Less is more

    • Natural and artificial flies

      Why six flies, not sixty

      There are a thousand patterns on the market. Six of them cover almost every trout you'll realistically try to catch.

      3 min read

    • Brook trout

      The 5 accessories you actually need

      Nippers, hemostats, polarized glasses, floatant, indicators. That is the list. Here is what to look for and what to spend.

      5 min read

    • Brook trout fishing

      Why a 9-foot, 5-weight rod

      The default trout rod, and why almost every angler should start there. Weight, length, and action explained in plain language.

      5 min read

    What to cast

    • Green drake and grey drake

      The Hatch Calendar

      Month by month, what hatches and what to cast. A reference for the year ahead.

      3 min read

    • Mayfly nymphs and adults

      Dry, nymph, or streamer

      Three categories of fly, three categories of decision. A field card for the moment you arrive at the water.

      2 min read

    • Grasshopper, detail

      The terrestrial window

      Late summer is hopper season. Bank fishing, big calorie meals, and the most fun a trout angler has all year.

      4 min read

    How to use the box

    • Hooks and dressed flies

      How to use your Hatch Theory box

      Each fly in the box, what it is for, when to tie it on, and how to fish it.

      7 min read

    • Optical diagrams

      Tippet 101

      The thin end of the leader, where you tie on the fly. One simple rule covers most situations.

      3 min read

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