Author David Roberts and "The Lost World of the Old Ones"

Exploring the canyons of the Four Corners area in search of remote archaeological remains is a passion for many residents and visitors to the area. KSJD's Tom Yoder talks with climber and author David Roberts to discuss his new book "The Lost World Of The Old Ones", which takes readers along on some of the most difficult cliff climbs in America in search of prehistoric remains, and how these places fit into the larger context of prehistory in the Southwest.