| Lat / long: | 37.763, -117.84287 |
| Tertiary: | Manganese |
| Ore: | Psilomelane, Pyrolusite, Wad |
| Discovery year: | 1939 |
| Operation type: | Unknown |
| Production size: | None |
| Development status: | Occurrence |
| Host type: | Clastic Sedimentary Rock |
| Associated type: | Latite |
| MRDS | M232113 |
| DEP | 10044606 |
| Reference | BENSON, W.T., 1950, INVESTIGATION OF BLACK ROCK MANGANESE DEPOSITS, ESMERALDA CO., NEV.: USBM, REPT. INV. 4717 |
| Reporter | Wong, George (Roberts, Ralph) |