National Geographic : 1928 Nov
Photograph by Joseph F.Rock IN THE "WILD WEST" OF CHINA Into this valley of the Litang River, in Szechwan, Joseph F. Rock, heading a National GeographicSociety expedition, penetrated in1924. Little more is known to-day about this region than in Marco Polo's time. During his travels Doctor Rock dividedhis time between collecting botanical specimens and eluding brigands. Frequently he would engage a large escort only to find them untrustworthy; whereupon hewould procure asecond guard to watch the first one (see, also, pages 569 to 618).