| Mine Name and YSU Mine Number | MAHONING (NO. 3) | TRUM000125 |
| Townships | HUBBARD | ... | ... | Quadrangle 001 | SHARON WEST |
| Lots | LOTS 19,20 | Quadrangle 002 | ... |
| County, State | Trumbull | Ohio | UTM | 17 560,300 2,521,600 |
| DOM Map Number | TL-9 | Seam Elevation |
| OGS Mine Number | Seam Thickness |
| USBM Document Number | 321673 | 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 | Yes |
| Date Opened | 1870 | Date Closed | 1883 | Located | Yes |
| Operator 001 | MAHONING COAL CO. | Operator 001 Date Opened | 1874 |
| 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 | Production of 400 tons/day; at Coalburg [22]. Slope filled with rubbish; operated for a long time; |
| connects with Mahoning No. 8 [5]. Mine map [1] shows 1 slope. |
| Last Update: | Tuesday, March 16, 1999 |