How far south does the niagara escarpment extend on the west shore of lake michigan?

The escarpment marks part of the shore of an ancient sea centered in Michigan, which extended west from rochester, NY, across Ontario to Michigan, then down the west side of Lake Michigan into Wisconsin. Water erosion and glaciation molded its striking features. Water continues to shape the landscape through the rivers which flow through it and from its more than 60 waterfalls.