| Mine Name and YSU Mine Number | HART (NO. 1) | COLU000085 |
| Townships | MADISON | ... | ... | Quadrangle 001 | WEST POINT |
| Lots | SEC. 17 | Quadrangle 002 |
| County, State | Columbiana | Ohio | SDP | 17 378,600 2,493,300 |
| DOM Map Number | CA-91 | Seam Elevation | 950';940'(TOPO) |
| OGS Mine Number | Seam Thickness | 4' |
| USBM Document Number | 321404 | Cover Thickness | 170' MAX |
| Mine Type and Commodity Mined | DRIFT | COAL | Drain Level | ABOVE |
| Seam Code 001 | BIG VEIN, BLACK BAND, BLACK VEIN, BLUE ROCK, | Hazard Potential | LOW |
| Seam Code 002 | ... | Mapped | Yes |
| Date Opened | 1939 | Date Closed | 1939 | Located | Yes |
| Operator 001 | HART COAL CO. | Operator 001 Date Opened |
| Operator 001 Date Closed | 1939 |
| 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 | Local mine [56]. Mine map [1] shows: 3 drift openings; rooms 30'-35' wide; ribs 5'-25' wide. |
| Last Update: | Monday, May 31, 1999 |