WINONA, Minn. – As on other bodies of water along the Minnesota-Wisconsin-Iowa borders, the ice-fishing shanties have disappeared from Lake Winona. And from Mud Lake too. And also Lock and Dams 5. 6 and 7. The deadline for the shanties has passed. Game wardens. can confiscate remaining shanties and ticket owners. Angling from so-called “non-permanent structures ends this weekend Sunday.