Above the city, the ledge at Dungeon Rock holds the first cold of November, and the Stone Tower stands over a canopy going bare. A&F Landscaping and construction works the streets below it, mowing and edging through the green months and clearing snow once the trails go white and quiet. There is one kind of satisfaction in a lawn cut to an even height before the afternoon heat arrives, and another in a driveway opened to bare pavement while the porch lights are still on. The trucks that haul clippings in September carry plow steel in January. Lynn hands them both jobs, and they take both.