Winter rarely announces itself politely in Rochester — it comes off the hills to the west overnight and leaves the driveways buried by six. NH Forestry Services runs the snow work here: plowing drives and lots, shoveling walkways and steps, and sanding or salting the packed places that turn slick by afternoon. Long wooded driveways are their own problem, banked by trees and drifted deeper than the road ever gets. Clearing one down to gravel before the first cup of coffee is a good way to start a storm day. When the melt finally runs off downhill, the work rests until the next one.