The Madeline Island Wilderness Preserve is a non-profit land trust dedicated to the protection and preservation of natural areas on Madeline Island. The nature preserve lands are open to the public for hiking, skiing, berry-picking and hunting. MIWP is committed to education and advocacy — each summer we sponsor field trips and evening programs. Madeline Island is adjacent to the Apostle Islands National Lakeshore on the South Shore of Lake Superior in Wisconsin.