Folded title: San Juan National Forest, Durango, Colorado. Relief shown by hachures. "New Mexico principal meridian." Color shows national forest land and campgrpund sites. "Forest service map -- class A" prepared by U.S.F.S. at Regional Office, Denver, Colorado 1959-60 from Forest Service & S.C.S. Planimetric Maps and U.S.G.S. Topographic maps constructed by photogrammetric methods using aerial photographs." At head of title: Prevent forest fires. Text and illustrations on verso describe facilities and rules for use. Includes "Key map, Rocky Mountain Region."