Lake Border Moraine

In Oceana County it forms the prominent "clay banks" along the shoreline of Lake Michigan.

It runs north of the great interlobate moraine that exists between the Lake Michigan and Saginaw lobes of the Laurentian ice sheet.

A short distance from Cadillac, it splits with the southern ridge or outer member heading to the Saginaw basin.

It separates in Wexford and Missaukee counties to continue south along the west side of the Saginaw basin.

[1] The outer members of the Lake Border morainic system reach their greatest height immediately north and west of Cadillac, where they attain an altitude of 1,500 feet (460 m) above sea level.

The outermost ridge for 20 miles (32 km) west from the line of Missaukee and Wexford counties stands above 1,400 feet (430 m).

Shown in dark blue, the Lake Border Moraine is located on the east shore of Lake Michigan. It is contemporary to the Park Ridge moraine on the west shore