"Walden to Wobegon" blog by Thor Thorson.Beginning June 29, 2009, professor, author, journalist, and geologist Robert M. Thorson will blog his way across the northern states from Maine to Montana. This idiosyncratic journey will explore the galaxy of nearly 100,000 lakes, ponds and potholes created along the southern edge of the Laurentide Ice Sheet, which covered most of Canada until about 11,000 years ago. Driving the author in their dented Volvo station wagon will be the author's wife of 32 years, Kristine Thorson. Where will they end up? What will they see? Who did they meet? Find out as you follow their journey vicariously via the internet.