From the Highland side, the Mid-Hudson Bridge hangs its cables above a river that goes pewter at first light. Iron edge Property services is usually moving by then, tailgate down on a street above the water with a day of mowing, string-trimming and edging ahead of it. An edge is the detail that separates a mowed lawn from a finished one — a true line along the sidewalk, around the mailbox, down the full length of the drive. Grass in this stretch of Ulster County grows hard from April into October, so the schedule holds and the lines stay honest. Then the leaves come down, and the cleanup work carries the yards into winter.