| 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 |
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| 1903 | Old Plymouth | | Washery | | 8 | | Luzerne | Old Plymouth Coal Co. | 55,781 | DL&W | 0 | 59,511 | 129 | 56 | | | 1904 | Old Plymouth | | Washery | | 8 | | Luzerne | Old Plymouth Coal Co. | 145,210 | DL&W | 0 | 155,914 | 196 | 60 | | | 1905 | Old Plymouth | | Washery | | 8 | | Luzerne | Old Plymouth Coal Co. | 165,268 | PRR | 0 | 179,507 | 203 | 82 | | | 1906 | Old Plymouth | | Washery | | 9 | | Luzerne | Old Plymouth Coal Co. | 166,799 | DL&W | 0 | 187,724 | 218 | 80 | |
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