Strip-mine regulation and reclamation: an attitude survey
Author
N.N.Reddy
Article Date
March 1974
Journal Title
Ariz Rev
MINING ENGINEERING
Silent stamp mills
Author
L.Schoenfeld
Article Date
March 1969
Article Abstract
Good picture and brief description of a stamp mill
Journal Title
Desert
Choppers' save the day in tough assignment
Article Date
September 13, 1959
Article Abstract
Helicopters take equipment to an inaccessible drilling site
Journal Title
Ariz Days & Ways