TY  - BOOK
AU  - Umpleby,Joseph Bertram
TI  - Geology and ore deposits of the Mackay region, Idaho,
T2  - United States.  Geological survey. Professional paper 97
AV  - QE75 .P9 no. 97
PY  - 1917///
CY  - Washington
PB  - Govt. Print Off.
KW  - Geology
KW  - Idaho
KW  - Ore deposits
N1  - At head of title: Department of the Interior; Three maps in pocket; Contains references
ER  -