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.

Learn how Bow River trout behavior responds to rising and falling water levels and discover proven fly fishing strategies to catch more fish in changing conditions.

Discover what makes Bow River fly fishing in Calgary different from other trout rivers, from big water challenges to strong wild trout and year-round consistency.