Fort Wayne Moraine

It only becomes identifiable in Lenawee County, Michigan south and northeast of Adrian before ending in the intermingling of moraines around Ann Arbor.

The south and eastern leg of the moraine follows the northern bank of the St. Marys River into the State of Ohio.

From Lima it runs west and northwest along the right bank of the St. Mary's River to Ft. Wayne.

Continuing northeast on the left bank of the St. Joseph River to Hudson, Michigan in Lenawee County.

Its headwaters in Auglaize and Mercer counties, flow north toward the Maumee until it comes to the moraine ridge.

In Allen County, Indiana the Wayne trace, or old Piqua road follows the crest.

The ridge is composed chiefly of boulder clay with a border of sand and gravel around its northern end.

[2] The plains to the east between the Fort Wayne and Defiance is 45 miles (72 km) wide and is occupied by faint terminal moraines.

Moraines south of Lake Michigan and southwest of Lake Erie. A composite of three maps (Leverett 1915) (Leverett 1902) (Larsen 1986) and other sources. Colors represent moraines from the same time period of the Wisconsin Glacial epoch