Everything in this stretch of northern Illinois answers to one area code, and the yards it covers all get thirsty in the same week of July. The loop through the Dixon heat is mowing on a rhythm the grass can take, trimming fence lines and foundations, edging the concrete, and blowing the walks clean before pulling away. When the humidity finally breaks in September the growth surges again and the round tightens back up. Then it is leaves off the turf before the ground freezes hard for the year. Dixon, Sterling, Rock Falls, Amboy and Polo.