The Confederated Salish and Kootenai Tribes are hosting Fall Mack Days on Flathead Lake from September 10 to November 8. Anglers can compete for cash prizes, bonuses, lottery drawings, and thousands of tagged lake trout, providing numerous opportunities for fishing and potential earnings during the event.

The 2026 Fall Mack Days fishing event at Flathead Lake runs from September 10 to November 8, organized by the CSKT and Montana Fish, Wildlife, and Parks. The tournament encourages lake trout management with cash prizes, bonus payouts, and lottery drawings. Registration is free, and various categories reward participation and performance.