Zinc-lead occurrences near Mapleton, Huntingdon Co., Pennsylvania
By: [by] Robert C. Smith II [and others].
Contributors: Smith, Robert Charles, 1945-
Series: Mineral conservation series; Earth and Mineral Sciences Experiment Station. Circular 83
Publisher: College of Earth and Mineral Sciences, Pennsylvania State University
Published: 1971
Place of publication: University Park
Language: eng
Number of pages: 37
Subjects: Zinc ores -- Pennsylvania -- Huntingdon County.; Lead ores -- Pennsylvania -- Huntingdon County.
Notes: Bibliography: p. 36.