- 2023 SPONSORED EP OOTEN OF THE FLATHON... A People of Vision TENAL TRIB FALL MACK DAYS UP TO $200,000 IN CASH + PRIZES (0 $10,000 & (3) $5,000 & (5) $1000 awards plus over (9,000) $500 to $100 Tagged Lake Trout. SEPT 14 - Nov 12 Flathead Lake Catch the $10,000 Fish! Sponsored by CSAKT For Rules, Prizes, Check-in Sites or to Register, go to: www.mackdays.com or call 675-2700 EXT. 7294 Fe MONTANT SANCTIONED - 2023 SPONSORED EP OOTEN OF THE FLATHON ... A People of Vision TENAL TRIB FALL MACK DAYS UP TO $ 200,000 IN CASH + PRIZES ( 0 $ 10,000 & ( 3 ) $ 5,000 & ( 5 ) $ 1000 awards plus over ( 9,000 ) $ 500 to $ 100 Tagged Lake Trout . SEPT 14 - Nov 12 Flathead Lake Catch the $ 10,000 Fish ! Sponsored by CSAKT For Rules , Prizes , Check - in Sites or to Register , go to : www.mackdays.com or call 675-2700 EXT . 7294 Fe MONTANT SANCTIONED