All Hatch Charts
Southern Alberta Lakes
28 lakes · Regional stillwater overview
Southern Alberta Lakes — Stillwater Hatches
Last reviewed 2026-05-21
Foothills and mountain lakes/reservoirs. Strong chironomid and callibaetis activity; damselflies and scuds in weedy littoral. Shorter ice-free season at elevation.
October hatches
Midge
Chironomidae
Moderatehigh
#18-263-12 mm
Air -5–25°C (optimal 5–18°C)Water 2–20°C (optimal 4–15°C)
Foothills and mountain lakes/reservoirs. Strong chironomid and callibaetis activity; damselflies and scuds in weedy littoral. Shorter ice-free season at elevation.
Blue-winged Olive
Baetis spp.
Moderatelow
#18-225-7 mm
Air 8–18°C (optimal 10–16°C)Water 5–12°C (optimal 6–11°C)
Foothills and mountain lakes/reservoirs. Strong chironomid and callibaetis activity; damselflies and scuds in weedy littoral. Shorter ice-free season at elevation.