Preliminary Geology of the Leadville 11º x 2º Quadrangle, Northwestern Colorado: Map MF-760
U.S. Geological Survey, 1976. tan envelope, 1 foldout. map scale 1:250,000 DM4. More
U.S. Geological Survey, 1976. tan envelope, 1 foldout. map scale 1:250,000 DM4. More
Denver, CO: U. S. Geological Survey, 1978. printed tan envelope, 12" tall, folded map, 1:250,000. DI2. More