Bow River trout don’t feed the same way all year. Water temperature, flow, insect activity, weather, and seasonal food sources all influence where trout hold and what they’re willing to eat. From winter midges and spring stoneflies to summer caddis, golden stones, hoppers, and fall mayflies, understanding these seasonal feeding patterns can help you make smarter decisions every time you hit the Bow.

Stonefly season is one of the most exciting times to fly fish the Bow River. From early spring Skwalas to the explosive Golden Stone hatch of late June and July, these big bugs can pull serious trout into shallow, bank-side feeding lanes. This guide breaks down the full season, stonefly life cycle, productive water, fly selection, rigging, timing, and the small adjustments that can turn a slow day into a memorable one.