| Mine Name and YSU Mine Number | MAHONING (NO. 9) | TRUM000071 |
| Townships | LIBERTY | ... | ... | Quadrangle 001 | GIRARD |
| Lots | GREAT LOT 15 | Quadrangle 002 | ... |
| County, State | Trumbull | Ohio | UTM | 17 554,300 2,514,800 |
| DOM Map Number | Seam Elevation |
| OGS Mine Number | 32 | Seam Thickness | 3'4";3'6"AV.-5' |
| USBM Document Number | Cover Thickness |
| Mine Type and Commodity Mined | SLOPE | COAL | Drain Level | BELOW? |
| Seam Code 001 | JACKSON, SHARON NO.1 | Hazard Potential | MODERATE |
| Seam Code 002 | Seam Information Unavailable | Mapped | No |
| Date Opened | 1880 | Date Closed | 1885 | Located | Yes |
| Operator 001 | MAHONING COAL CO. | Operator 001 Date Opened | 1880 |
| 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 | Operated for 7 or 8 years; about 30 acres were taken out; most of the pillars and ribs were left; |
| slope filled with dirt [5]. |
| Last Update: | Tuesday, March 16, 1999 |