| Lat / long: | 47.43, -88.19393 |
| Primary: | Copper |
| Ore: | Copper |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| Production years: | ARNOLD MINE PROPER OPENED IN 1863 AND OPERATED FROM 1863 TO ABOUT 1869; CLOSED 1869-1892; ACTIVE 1892-1894; IDLE 1894 TO FEB 1897 WHEN WORK RESUMED. |
| First production started: | 1860 |
| Last production ended: | 1900 |
| Host rock: | Ashbed Amygdaloid, Portage Lake Volcanics |
| Host type: | Andesite |
| MRDS | W062197 |
| DEP | 10082839 |
| Reference | {Deposit:: BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF PAPER NO. 144, 238 PP.}{Deposit:: CORNWALL, H. R., AND WRIGHT, J.C., 1954, BEDROCK GEOLOGY OF THE EAGLE HARBOR QUADRANGLE, MICHIGAN: U.S. GEOLOGICAL SURVEY, GEOLOGIC QUADRANGLE MAPS OF THE UNITED STATES, GQ 36, 1:24,000.}{Production:: BUTLER AND BURBANK, 1929} |
| Reporter | Sutphin, D.M. (Cannon, W.F.), Mason Jr., G.T. |