National Geographic : 1937 Dec
IT'S SAFER TO LEAD YOUR HORSE ACROSS THIS SWAYING BRIDGE INPERU Ewing Galloway Wheels call for roads, and roads for bridges. In some more wild and remote South American regions pack animals still handle much traffic, over trails impassable for vehicles. This bridge spans a stream on such a trail. Recently Peru has begun extensive road making which will eventually add herlink totheinter-American highway system (page 803).