Late June in Danville, when the white pines lean their shade across the back roads and the heat stands still over Long Pond, is when the asphalt work begins in earnest. Pavemaster lays new pavement, mills away tired top layers, patches the cracks that a Rockingham County winter opens up, and seals the surface against the next one — residential drives, private roads, commercial lots and heavy industrial ground alike. There is a real satisfaction in the finish: a driveway rolled smooth and dark to the edge of the lawn, the crisp line where new work meets old stone wall, a surface that sheds an August thunderstorm and shrugs off February. When the snow comes to these sandy woods and quiet colonial streets, the same crews clear it away. From Danville out through Derry, Londonderry, Windham, Salem, Bedford, Manchester and Concord, and across the line into the York and Kennebunk coast and the Merrimack Valley towns, the work leaves the ground underfoot better than it found it.