The Michigan Department of Natural Resources (DNR) has set varying deadlines for ice shanty removal across the state. Shanty owners must remove their structures by the deadline, after which they can only be used and removed daily. Lake St. Clair’s deadline was Feb. 20. Most Lower Peninsula counties must remove shanties by March 1. A group of 33 northern counties and Michigan-Wisconsin boundary waters have a March 15 deadline. Upper Peninsula lakes allow shanties until March 31. The DNR warns that owners who miss the deadlines will be charged for abandoned shanty removal.