The Backbone of the WorldBy: Clifford, Frank In recent years, Los Angeles Times writer and editor Frank Clifford has journeyed along the Continental Divide, the hemispheric watershed that spans North America from the alkali badlands of southernmost New Mexico to the roof of the Rockies in Montana and into Canada. The result is The Backbone of the World, an arresting exploration of Americas longest wilderness corridor, a harsh and unforgiving region inhabited by men and women