| Mine Name and YSU Mine Number | PEN-HIO CLAY | MAHO000073 |
| Townships | Boardman | ... | ... | Quadrangle 001 | Youngstown Quad |
| Lots | GREAT LOT 12 | Quadrangle 002 | ... |
| County, State | Mahoning | OH | UTM |
| DOM Map Number | MG-69 | Seam Elevation |
| OGS Mine Number | Seam Thickness |
| USBM Document Number | 321602 | Cover Thickness |
| Mine Type and Commodity Mined | STRIP | CLAY | Drain Level |
| Seam Code 001 | Seam Information Unavailable | Hazard Potential | NOT EVAL. |
| Seam Code 002 | Seam Information Unavailable | Mapped | Yes |
| Date Opened | Date Closed | 1947 | Located | Yes |
| Operator 001 | PEN-HIO CLAY CO. | Operator 001 Date Opened |
| Operator 001 Date Closed |
| Operator 002 | ... | Operator 002 Date Opened |
| Operator 002 Date Closed |
| Operator 003 | ... | Operator 003 Date Opened |
| Operator 003 Date Closed |
| Operator 004 | ... | Operator 004 Date Opened |
| Operator 004 Date Closed |
| Operator 005 | ... | Operator 005 Date Opened |
| Operator 005 Date Closed |
| Operator 006 | ... | Operator 006 Date Opened |
| Operator 006 Date Closed |
| Operator 007 | ... | Operator 007 Date Opened |
| Operator 007 Date Closed |
| Operator 008 | ... | Operator 008 Date Opened |
| Operator 008 Date Closed |
| Remarks | County mine No. Mg 69. Not located. |
| Last Update: | Wednesday, February 17, 1999 |