| Year | Operation Name | Number | Type | Opening | District | City | County | Company Name | Railroad Shipments (tons) | Railroad to Mine | Truck Shipments (tons) | Total Production (tons) | Days Worked | Employees | Notes |
|---|
| 1871 | Plymouth | No. 1 | Colliery | Shaft 1 | Middle | Plymouth | Luzerne | Northern Coal & Iron Co. | 0 | | 0 | 0 | | | |
| 1872 | Plymouth | No. 1 | Colliery | Shaft 1 | Middle | Plymouth | Luzerne | Northern Coal & Iron Co. | 0 | | 0 | 0 | | | |
| 1875 | Plymouth | No. 1 | Colliery | Shaft | Middle | Plymouth | Luzerne | Delaware & Hudson Canal Co. | 0 | | 0 | 47,095 | | 307 | |
| 1876 | Plymouth | No. 1 | Colliery | Shaft | Middle | Plymouth | Luzerne | Delaware & Hudson Canal Co. | 0 | | 0 | 50,075 | 102 | 102 | |
| 1878 | Plymouth | No. 1 | Colliery | Shaft 1 | Middle | Plymouth | Luzerne | Delaware & Hudson Canal Co. | 0 | | 0 | 0 | | | |
| 1879 | Plymouth | No. 1 | Colliery | Shaft | Middle | Plymouth | Luzerne | Delaware & Hudson Canal Co. | 0 | | 0 | 0 | | | Not in operaton in 1879. |
| 1902 | Plymouth | No. 1 | Colliery | Shaft 1 | 4 | Plymouth | Luzerne | Delaware & Hudson Canal Co. | 0 | D&H | 0 | 0 | | | |
Note 1: Added, does not appear in the mine inspection report.