National Geographic : 1952 Sep
© National Geographic Society 391 Kodachromes by National Geographic Photographer Richard II. Stewart Patrol Plane, Helicopter, and Truck Push the Search for Strange Indian Effigies Cooperation by all three transports proved essential to the National Geographic-Smithsonian Institution expedi tion into the lower Colorado River Basin. Gravel sculptures which it sought were carved on the desert so long ago that modern tribes have forgotten their significance. To help decipher this anthropological puzzle, the U. S. Air Force lent the expedition an Air Rescue team. When the team's truck broke down in a canyon, the Catalina (above) dropped food, water, and parts. The helicopter functioned as a flying platform for author and photographer. Carryall and aircraft here communicate by radio.