Yogo
Subtitle: The Great American Sapphire
Edition: Revised edition
Publisher: Mountain Press Publishing Company
Published: October 1, 1987
Language: eng
Format: Paperback
Number of pages: 219
ISBN-13: 9780878422173
Subjects: United States - State & Local - General; Rocks & Minerals; Mining Of Specific Minerals; History - U.S.; Yogo Creek Region (Mont.); History: American; Yogo Creek Region; Sapphire mines and mining; Science / Earth Sciences; Earth Sciences - Geology; History; Montana