Publisher's Synopsis
What happens if you plug your bathtub drain? How big a mess can you make as the water spills out of the tub? Ice plugged the drain in Puget Sound. It made a mess here - but now it is lovely. Maybe it will happen again. How do we know? What is the evidence we can find on the hills around us? This is a great book for both adults and children for learning about the Ice Age geology of the Puget Sound region.
