skip to content
Search
Search U.S. government technical reports digitized or harvested by
TRAIL
.
Keyword Search
Enter your search term(s):
[advanced search]
2 results returned
Browse TRAIL Inventories
(opens in new tab)
Search results
Investigation of Twin Buttes copper mines, Pima County, Ariz.
Copper Giant deposits, Pima County, Ariz.
Refine your search results
Published Year
1950-1959 (2) *
Subject
Copper mines and mining--Arizona--Pima County (2)
Copper ores--Arizona--Pima County (1)
Author
Romslo, T. M. (2) *
Cummings, Joseph B. (1)
Robinson, C. S. (1)
