sentences:  The first is the Kittatinny Valley, which is in the northern part of the county, and the Lehigh Valley, which is in the southern part of the county.The Lehigh Valley starts at the terminal moraine of the Wisconsin Glacier slightly north of Belvidere.It extends from the Delaware River south to where the Musconetcong River goes into the Delaware River, northeast to the Jenny Jump Mountains and then along Route 80 to the Allamuchy Mountains to the terminal moraine near Hackettstown.