Alberta

An informational graphic titled "Bow River Hatch Chart" showcasing the entomological successions between Calgary and Carseland Weir. The background features a winding turquoise river through a lush mountain valley, while the foreground includes stylized icons of Mayflies, Stoneflies, and Caddisflies positioned above a color-coded timeline.

Bow River Hatch Chart

The Bow River ecosystem represents one of North America’s most biologically productive cold-water environments. Stretching from its glacial origins in Bow Lake through Banff National Park and into southern Alberta’s prairie landscapes, the river provides diverse micro-habitats supporting an extensive macro-invertebrate community.
28. January 2026.