Economic geology of the Georgetown quadrangle (together with the Empire district) Colorado
By: by Josiah E. Spurr and George H. Garrey: with general geology, by Sydney H. Ball.
Contributors: Garrey, George H., 1886-; Ball, Sydney Hobart, 1877-1949.
Publisher: Govt. Print. Off.
Published: 1908
Place of publication: Washington
Language: eng
Number of pages: 422
Subjects: Mines and mineral resources -- Colorado.; Geology -- Colorado.
Notes: Four folded plates, including 2 maps, in pocket.