The Saginaw Lake plain is located in the "web" of the Thumb.   This flat landscape took on its character after being inundated by the water of Glacial Lake Saginaw from about 14,000 to 13,000 years ago.
soilmap-aqualf-aquept-aquoll.jpeg (77996 bytes)

A typical scene in this landscape:
saginaw-thumb.JPEG (27451 bytes)

This material has been compiled for educational use only, and may not be reproduced without permission.  One copy may be printed for personal use.  Please contact Randall Schaetzl ( for more information or permissions.