| Mine Name and YSU Mine Number | NATIONAL (NO. 8) & (NO. 9) | COLU000097 |
| Townships | UNITY | MIDDLETON | ... | Quadrangle 001 | EAST PALESTINE |
| Lots | SECS. 25,36 | SEC. 1 | Quadrangle 002 |
| County, State | Columbiana | Ohio | SDP | 17 427,300 2,547,100 |
| DOM Map Number | CA-93 | Seam Elevation |
| OGS Mine Number | Seam Thickness |
| USBM Document Number | 321486 | Cover Thickness |
| Mine Type and Commodity Mined | DRIFT | Drain Level |
| Seam Code 001 | Seam Information Unavailable | Hazard Potential |
| Seam Code 002 | ... | Mapped | Yes |
| Date Opened | Date Closed | Located | Yes |
| Operator 001 | NATIONAL FIREPROOFING CORP. | Operator 001 Date Opened |
| Operator 001 Date Closed | 1931 |
| 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 |
| Last Update: | Friday, May 21, 1999 |