National Geographic : 1950 Apr
© National Geographic Society 468 Kodachlrome by Francis It. Line Through Weird Cactus Pitfalls the Caravan Cautiously Threads Its Way As impoverished and hostile as the desert seems, it glitters with inviting blooms. Cholla cactus (seen in blossom) attacks the sheep with spines (opposite page). Tall saguaros serve hawks as pincushion lookout towers.