Clean fifth printing (1971) in clean bright original dust jacket. Red cloth boards with black lettering on spine. No bumping or wear. Binding is tight and square, hinges are sound. Pages are clean with clean color map-illustrated endpapers. No names, writing or bookplates; very small remainder mark on bottom text block page edges. Illustrated with photographs. 646 pages with Index. Clean jacket is unchipped, has a few very short closed edge tears; enclosed in new archival quality removable mylar cover. In the early 1970s, National Geographic ran an extensive series of articles investig... View More...