| Lat / long: | 41.57561, -93.0752 |
| Primary: | Flagstone |
| Operation type: | Surface |
| Development status: | Past Producer |
| MAS | 190990087 |
| DEP | 10266922 |
| Reference | {Deposit:: IOWA ST. HWY COMM. AGGREGATE RESOURCE LISTING 1977}{Deposit:: IOWA GEOLOGICAL SURVEY,ANNUAL REPORT 1913, VOL. 24, P. 357-359,}{Deposit:: 1904, VOL. 15, P. 320-321.} |
| Reporter | Igs / Dh |