The divide originates at the Eastern Triple Divide(see sidebar) near the middle of the northern border of Pennsylvania then runs generally south-by-southwest following the crest of the Appalachian Mountains through Pennsylvania, western Maryland, West Virginia, Virginia and North Carolina to its high point on Grandfather Mountain (Though Mount Mitchell is the highest point in the Appalachian Mountains, it is not on the ECD, but 4 miles west of the ECD), then descends to the city of Atlanta in northwestern Georgia, where it doglegs southeasterly across the Georgia plateau and through the lowlands of Northern Florida to its terminus in central Florida at the northern boundary of the Lake Okeechobee Basin(see sidebar).