"Draw out the physical contours of your map, and then identify at least three places that your people might live. You don't need names for them yet-- we'll worry about names next week, when we give our people language. Just draw a dot on the map or maybe sketch a little "house" symbol to indicate that people have settled that area. "
This is the world map for the Heavy Magic story. The actual map is really much clearer. The red dots are the cities. The tan areas are deserts. The white at the top and bottom are the ice caps. Each square is 50 miles by 50 miles.