The old rail bed runs straight through Danbury toward Grafton, a level green line laid across a town that has almost no other flat ground. Leung Property Serviecs LLC keeps the yards on either side of it — mowed, trimmed, beds cleared, leaves taken off before they mat down over winter. Down along the Smith River the grass comes in thick and fast once June arrives, and staying ahead of it takes a steady weekly hand. There is a plain pleasure in backing out of a driveway and seeing the whole lot even, edge to edge. Danbury is a small place, and work like this speaks for itself from the road.