| Lat / long: | 42.35343, -123.21671 |
| Primary: | Gold, Silver, Lead |
| Ore: | Galena, Pyrite |
| Gangue: | Limonite, Quartz |
| Discovery year: | 1865 |
| Operation type: | Unknown |
| Production size: | None |
| Development status: | Occurrence |
| Host rock: | Applegate Group |
| Host type: | Quartzite,Argillite |
| Associated type: | Diorite |
| MRDS | M025222 |
| DEP | 10036425 |
| Reference | RAMP, L., 1959, GAMMILL PROSPECT; ODGMI UNPUBLISHED FILE REPOR |
| Reporter | Ferns, Mark L. (Brooks, Howard C.), Gray, Jerry J. |