University of Arizona

Students, faculty, staff, and the public are now welcome to visit Special Collections without an appointment from 9 am to 4 pm, Monday through Friday. 

Page from Black Powder Keg Ledger Book, the Harshaw Mining Company, 1881-1882

Page from Black Powder Keg Ledger Book, the Harshaw Mining Company, 1881-1882

Page from Black Powder Keg Ledger Book, the Harshaw Mining Company, 1881-1882.