From the Collar City Bridge the whole valley opens up — the Hudson running north, the roofs of the city stacked along the hill. Collar City Lawn Care and Snow Maintenance works underneath that view. The warm months are mowing, trimming and edging on a weekly rhythm, with cleanups bracketing the season at both ends. Winter is a headlight-and-plow business: driveways pushed open, sidewalks cleared, salt laid where the ice sets up overnight. There is something good about being the reason a street can get moving in the morning.