| Mine Name and YSU Mine Number | MCMASTER | TRUM000027 |
| Townships | VIENNA | ... | ... | Quadrangle 001 | No Quad Given |
| Lots | LOT 9? | Quadrangle 002 | ... |
| County, State | Trumbull | Ohio | UTM |
| DOM Map Number | Seam Elevation |
| OGS Mine Number | Seam Thickness |
| USBM Document Number | Cover Thickness |
| Mine Type and Commodity Mined | SHAFT | Drain Level |
| Seam Code 001 | Seam Information Unavailable | Hazard Potential |
| Seam Code 002 | Seam Information Unavailable | Mapped | No |
| Date Opened | Date Closed | Located | No |
| Operator 001 | No Operator For This Mine | 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 | Production of 80 tons/day in 1880 [58]. D. McMaster property, Lot 9 [62]. |
| Last Update: | Tuesday, March 16, 1999 |