Geology of the Grayback mining district, Costilla county, Colorado
By: by Horace B. Patton, Charles E. Smith, G. Montague Butler, Arthur J. Hoskin
Contributors: Smith, Charles E.; Butler, G. Montague (Gurdon Montague), 1881-1961; Hoskin, Arthur Joseph, 1869-
Series: Colorado Geological Survey. Bulletin -- 2; Bulletin (Colorado Geological Survey) -- 2.
Publisher: [The Smith-Brooks Printing Co., State Printers]
Published: 1910
Place of publication: Denver, Col]
Language: eng
Number of pages: 111
Subjects: Geology
Notes: Bibliography: p. 98-99.