TALES FROM THE ICE-FREE ZONE, by Robert E. Lee, was seriously and soberly written to inform anyone who might pick up the book about life in the Driftless Area of America's Upper Midwest. Here lies the portion of our country that the great glaciers bypassed, though glacial activity completely surrounded it -- on one side at a time -- during at least four advances of the ice sheet. The bulk of this anomaly lies over the southwestern quarter (approximately)...