Object Type: FolderIn Folder: Mining Records; (1850-1973)
Index to Mining Affidavits; (1891-1919)
Code 2230.3.4 (pdf)
Indices to Proof of Labor Books; (1859-1973)
code 2230.3.1 (pdf)
Proof of Labor Files; (Loose Files)
code 2230.3.1 (jpeg)
Proof of Labor Books A-Z, 1-4; (1896-1960)