Flathead Lake • 2026 Fall Mack Days
2026 Fall Mack Days
Win Cash and Prizes! Thursday 9/10/26-11/08/2026
Sponsored by the Confederated Salish and Kootenai Tribes and sanctioned by Montana Fish Wildlife & Parks, Fall Mack Days 2026 will take place on Flathead Lake from Thursday September 10th to Sunday November 8th. Thank you to all our anglers for a great 2026 Spring Mack Days! Check out the rules page or/event poster for more information.
New AIS Inspection Requirements
Identify
Your Catch
Lake Maps and Access Sites
Safe Boating & Launching
Your Fall 2026 Mack Days Countdown
Mack Days Newsletter
Sponsored by the Confederated Salish and Kootenai Tribes and sanctioned by Montana Fish Wildlife & Parks, 2026 Fall Mack Days will take place on Flathead Lake from September 10th to November 8th. Fish one day or everyday. Every fish enters you in the lottery drawings and you may have a tagged lake trout with a value from $100-$10,000. There are over 9,000 tagged fish that have been released all over Flathead Lake. Bonus dollars are paid once your total reaches 11 lake trout. Amounts go up as your total goes up. Go to the bonus page for the chart. Awards and lottery prizes are listed on the awars page.
Camping will be available only for Mack Days anglers . Telephone 406-274-0613
