The Mother Lode system of California
By: by Adolph Knopf.  Prepared in cooperation with the California State Mining Bureau.
Contributors: California State Mining Bureau.
Series: United States.  Geological Survey.  Professional paper; 157; Geological Survey professional paper ;; 157.
Publisher: U.S. Govt. Print. Off.
Published: 1929
Place of publication: Washington
Language: eng
Number of pages: 88
Subjects: Ore deposits -- California.; Gold mines and mining -- California.
Notes: At head of title: Department of the Interior.
Map folded in pocket.