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Flathead Lake Mack Days | Montana

Festival Event

Lake Trout – U.S. Fish and Wildlife Services

Flathead Lake Mack Days are months-long, semi-annual fishing derbies sponsored by the Confederated Salish and Kootenai Tribes and sanctioned by Montana Fish, Wildlife and Parks. Taking place in the spring and fall, these events help to restore native bull trout and westslope cutthroat trout by removing introduced nonnative lake trout. Bulltrout and cutthroat were once the dominant fish species in the lake and were overtaken by invasive lake trout.

People from far and wide come to fish Flathead Lake to help remove invasive lake trout in hopes of winning awards and cash prizes for number and size of fish caught. Head on over to Flathead Lake if you want to hear about the big one that got away, try your luck catching prize worthy fish, and help with the management of an important fishery.

Flathead Lake is the largest natural freshwater lake west of the Mississippi River. With its vast size you can expect weather systems different than the rest of the Flathead Valley. Recreating and watching sunsets on this natural wonder is a must. While you are in the area check out the charming lakeshore towns of Polson, Lakeside, Somers, and Bigfork.

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KNOW BEFORE YOU GO- Prevent the Spread of Aquatic Invasive Species The Confederated Salish and Kootenai Tribes is requiring all watercraft that are participating in Spring Mack Days to undergo inspections.

Inspections can be arranged at CSKT offices at 406 Sixth Ave. E. in Polson, Monday through Thursday, 7 a.m. to 5 p.m. Call (406) 675-2700, ext. 7280, or (406) 261-6515 to arrange a time.

Inspections will be conducted at Blue Bay starting March 13. Spring Mack Days runs March 16-May 13, 2018.