| Mine Name and YSU Mine Number | OHL | MAHO000042 |
| Townships | Austintown | ... | ... | Quadrangle 001 | Warren Quad |
| Lots | TRACT 16 | Quadrangle 002 | ... |
| County, State | Mahoning | OH | UTM | 17 538,700 2,475,800 |
| DOM Map Number | MG-39 | Seam Elevation |
| OGS Mine Number | Seam Thickness |
| USBM Document Number | 321588 | Cover Thickness |
| Mine Type and Commodity Mined | SLOPE | COAL | Drain Level | ABOVE |
| Seam Code 001 | JACKSON NO.1, MASSILLON, NO.1, SHARON | Hazard Potential | MODERATE |
| Seam Code 002 | UPPER FREEPORT | Mapped | Yes |
| Date Opened | 1835 | Date Closed | Located | Yes |
| Operator 001 | S. OHL | 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 | Opened in 1835 on the farm of Micheal Ohl situated on Coal Run, south side of Mineral Ridge. |
| First mine of Mineral Ridge [58]. Mine map [1] shows several openings with different names. |
| Last Update: | Wednesday, February 17, 1999 |