Before dawn in January the Moodna Viaduct stands black against a sky that hasn't decided on morning yet, and the plows are already working beneath it. Foley Landscape Contractors clears snow and ice for Cornwall — driveways, lots, walks salted and sanded — then trades the plow for the mower when the ground softens and spends the warm months on mowing, trimming and seasonal cleanups. Winter in these hills rewards people who get out early and stay out late. The measure of a night's work is simple: black pavement, banks pushed back where they belong, a car that leaves on time. Come April the same hands rake the same driveway clean.