Tweto, Ogden, Moench, Robert H., and Reed, Jr., John C.,

Geologic Map of the Leadville 1º x 2º Quadrangle, Northeastern Colorado: Miscellaneous Investigations Series Map I-999

Denver, CO: U. S. Geological Survey, 1978. printed tan envelope, 12" tall, folded map, 1:250,000. very good. Item #5564970

DI2.

Price: $25.00