Snow falling on the Amoskeag Millyard turns the brick soft and orange under the lot lights, and the city goes very quiet somewhere around midnight. That is the shift Maps Landscaping & Snow Plowing works — plowing driveways and lots, clearing walkways and steps, salting and sanding so the morning has somewhere to put its feet. Manchester storms come up the Merrimack valley with wind behind them, and drifts rebuild themselves at the mouth of every driveway. The whole point of the night is a clean apron of pavement waiting before the first car backs out.