At Glenville the Byram River drops over its old mill dam and steams in the cold, and on a February morning that vapor is the first thing moving in the village. Colorado Services LLC is out ahead of it — plow down, driveways opened, walks shoveled to the door, salt laid where the shade keeps ice honest past noon. Storms come up the shoreline and stall against these low hills, which is why the second and third passes matter as much as the first. The measure of a night is a clean apron of pavement at seven o'clock and a car that leaves without spinning. That is the whole ambition, and it is enough.