Hard-working Katy (a crawler tractor) saves the city of Geopolis when a major blizzard shuts down the town. A lovely story exploring machinery, determination, and essential jobs. My children were enraptured with Katy the first time we read her and still ask to reread her story. Classic illustrations in blues, reds, and yellows. Perfect for a snowy read this winter! This vintage hardback shows a copyright of 1971.