| Lat / long: | 41.44641, -93.66462 |
| Primary: | Flagstone |
| Operation type: | Surface |
| Development status: | Past Producer |
| MAS | 191810072 |
| DEP | 10194320 |
| Reference | {Deposit:: REPORT ON THE GEOLOGICAL SURVEY OF THE STATE OF IOWA, 1870, V. 2,}{Deposit:: P. 52.} |
| Reporter | Igs / Dh |