The oxidized zinc ores of Leadville, Colorado
By: by G. F. Loughlin.
Series: U.S. Geological survey. Bulletin; 681
Publisher: Govt. print. off.
Published: 1918
Place of publication: Washington
Language: eng
Number of pages: 91
Subjects: Zinc mines and mining -- Colorado.
Notes: At head of title: Department of the interior.