Motorists on Forest Service road in Colorado

View of motorists in two cars on U.S. Forest Service road in Colorado. Pillars of Hercules rock formation in background. Printed on front: "Insert: The National Forests. Caption: Roads like these and scenery like this account for the fact of the millions of visitors to the forests. Credit: U.S. Forest Service." Typed on back: "A Forest Service road in Colorado. The massive rocks in the background are known as the Pillars of Hercules." Handwritten on back: "Roads. #2 car, White Steamer?"