| Mine Name and YSU Mine Number | CHESTNUT HILL, RYDER | MAHO000046 |
| Townships | Youngstown | ... | ... | Quadrangle 001 | Youngstown Quad |
| Lots | GREAT LOTS | Quadrangle 002 | ... |
| County, State | Mahoning | OH | UTM | 17 519,000 2,496,800 |
| DOM Map Number | MG-42 | Seam Elevation | 874' (TOPO) |
| OGS Mine Number | Seam Thickness | 2-4' |
| USBM Document Number | 321556 | Cover Thickness | 120' ASO;126' |
| Mine Type and Commodity Mined | SHAFT | COAL | Drain Level | BELOW |
| Seam Code 001 | JACKSON NO.1, MASSILLON, NO.1, SHARON | Hazard Potential | HIGH |
| Seam Code 002 | Seam Information Unavailable | Mapped | Yes |
| Date Opened | 1899 | Date Closed | 1903 | Located | Yes |
| Operator 001 | CHESTNUT RIDGE COAL CO. | Operator 001 Date Opened | 1899 |
| Operator 001 Date Closed | 1899 |
| Operator 002 | CHESTNUT HILL COAL CO. | Operator 002 Date Opened | 1900 |
| Operator 002 Date Closed | 1900 |
| Operator 003 | TYRELL & RIDER | Operator 003 Date Opened | 1900 |
| Operator 003 Date Closed | 1903 |
| 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 | Tom Tyrrell (No. 3) mine in same location as Mg-42; wagon mine with a capacity of 30 tons/day; |
| planks over opening covered with dirt [5]. Mine map [1] shows: 2 shaft openings; 1 air shaft; |
| Mg-24 (Manning mine). Coal identified by elevation. |
| Last Update: | Wednesday, February 17, 1999 |