A great fly in the right spot doesn’t mean much if your line is dragging it through the water unnaturally. Good line control is one of the biggest differences between simply fishing the Bow River and consistently catching fish on it. From mending and managing slack to reading currents and extending your drift, we break down the techniques that help create natural presentations and turn more opportunities into hookups.

Water clarity can change how trout see, track, and respond to your fly. This guide explains how to adjust fly size, colour, contrast, movement, and weight for clear, stained, and murky Bow River conditions—helping Calgary anglers make smarter fly choices and spend less time guessing on the water.