During the visit that she and Peter had made to B.C., she had learned that the southern part of the province sported a number of long, skinny, deep lakes, oriented north-south, presumably gouges left in the earth by glaciers during the most recent Ice Age. They were too long to dodge around and too wide to bridge, so the east-west highways ran right up to them and stopped and then started again on the opposite side. The dead ends were connected by small ferries.