Economic factors affecting the mining, processing, gasification, and marketing of Coos Bay coals
By: Ralph S. Mason, Deputy State Geologist and Paul Hughes, consultant.
Series: Open-file report / State of Oregon Dept. of Geology and Mineral Industries ; 0-75-6; Open-file report (Oregon. Dept. of Geology and Mineral Industries) -- O-75-6.
Publisher: State of Oregon Dept. of Geology and Mineral Industries
Published: 1975
Place of publication: Portland, Ore
Language: eng
Number of pages: 61
Subjects: Coal mines and mining -- Oregon -- Coos County.
Notes: Base maps are U.S. Geological Survey 7.5 topographic quadrangles: Riverton - Coos Bay - Coquille - Charleston.  Each is hand annotated in color; legend is separate.