| Lat / long: | 42.19831, -88.09003 |
| Primary: | Perlite |
| Operation type: | Processing Plant |
| Development status: | Producer |
| MAS | 170970020 |
| DEP | 10242097 |
| Reference | {Deposit:: RCF/CMS LISTS 10/81}{Deposit:: MSHA NON-MINING MIF LIST, 12-16-82} |
| Reporter | Eastern Field Operations Center (EFOC) |