This field guidebook completes the loop of highways in Ontario from Wawa, south to the Soo (Sault Ste. Marie), to the east Thessalon, then north to Chapleau, and back west to Wawa. Like the other books in the series, it is in full color and concentrates on selected accessible bedrock outcrops. There is also an additional book from Thessalon to Sudbury along Trans-Canada 17.The first two dozen pages give you the geologic background needed to understand...