Global Navigation Subscribe Shop Member Services Email Updates Search Interest Based Navigation HistoryThe ArtsScience & TechnologyTravelNature & WildlifePeople & Culture In The Magazine· June 2006 Below the Rim Scientists are only now beginning to decipher the intriguing clues left behind by people who lived in the Grand Canyon more than 8,000 years ago Interview: David Roberts, Author of "Below the Rim" Author David Roberts talks about what he found surprising while exp ...