There is an hour in a Delta winter — four in the morning, the valley socked in under an inversion, everything gray-blue and still — when the only sound for blocks is a plow blade finding pavement. Callaway Packing Inc takes on snow removal in that hour, on the lots and docks and approaches where trucks have to be able to swing wide by six. Valley snow is dry and light and blows back into the lane it just left, so the job is as much about where you put it as how fast you move it. Piles go where they will not drift back and will not melt into a sheet of ice by Thursday. By the time the sun clears the rim, the ground is black and the day can start on time.