Mink Lake Moraine
A North Algona Wilberforce Township 19.9-ha regionally significant Earth Science ANSI.
Mink Lake Moraine ANSI contains a Late Wisconsinan moraine composed of sandy bouldery till with some sorted sands and gravels. There are several small moraine ridges running east-west and a classic example of a craig and tail feature. The moraine records one position of the withdrawing ice. [Earth Science Database, 1998]