Straight lines are the pleasure of this trade, and Marlborough gives you plenty of ground to draw them on — river terraces, orchard flats, wide sloping yards that catch the full noon of July. Greenline Grounds Co. handles the mowing, trimming, edging and grounds upkeep that make those yards look deliberate rather than accidental. Down at the Milton landing the freight line runs its own straight line along the Hudson; up on the yards above it, a mower does the same. Heat builds off the water by afternoon and the work slows, but the finish never does: a crisp border along a walk, beds cut clean, nothing left behind on the pavement. Marlboro, Milton, Highland and the surrounding Ulster County roads make up the week.