Canadian Pavilion at Expo 67, the Geological Survey of Canada, prepared a map of Canada Posted on 2020/10/25 by Carl Robitaille For the Canadian Pavilion at Expo 67 the Geological Survey of Canada prepared a map of Canada (10 metres in width) on which Canada’s major geological formations were represented by their characteristic rocks. Source: https://t.co/SQkTlfUm0k pic.twitter.com/EMBaUdG1Yx— Simon Kuestenmacher (@simongerman600) October 24, 2020