SPRINGMACK DAYS On Flathead Lake Sponsored of SPONSORED MONTANA MARCH 17-MAY 15 $225,000+Prizes! Cash WILDLIFE For Rules, Prizes, Check-in Sites or to Register, go to: www.mackdays.com or call 675-2700 ext.7294 SANCTIONED to PARKS SPRINGMACK DAYS On Flathead Lake Sponsored of SPONSORED MONTANA MARCH 17 - MAY 15 $ 225,000 + Prizes ! Cash WILDLIFE For Rules , Prizes , Check - in Sites or to Register , go to : www.mackdays.com or call 675-2700 ext.7294 SANCTIONED to PARKS