Mankato Glacial Substage References Mankato Glacial Substage geology Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: glacial stage…or four substages, called the Mankato in North America and Würm IV in Europe, ended about 11,700 years ago, by which time the world’s glaciers had retreated to their present-day dimensions. See also Pleistocene Epoch. Read More…or four substages, called the Mankato in North America and Würm IV in Europe, ended about 11,700 years ago, by which time the world’s glaciers had retreated to their present-day dimensions. See also Pleistocene Epoch. Read More