Littleton sits where the Ammonoosuc drops fast and cold beneath Main Street, with the White Mountain foothills standing close on every side and dooryards cut out of hardwood that has been growing there a long time. Cavanaugh & Son Tree Service & Lawn Care works that ground — tree work in the tall maples and pines that crowd North Country lots, and lawn care that leaves a clean line where grass gives way to river gravel and ledge. There is real satisfaction in a mown yard that still looks mown a week later, in limbs brought down cleanly and hauled off so a driveway opens back up to the light. Come winter, when a storm comes down out of the notch and fills a road overnight, the plowing gets done early, so the pavement is bare and dark before the valley is properly awake.