| 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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| 1899 | Sterling | | Washery | | 4 | | Luzerne | Sterling Coal Co. | 14,610 | | 0 | 16,000 | 91 | 23 | | | 1900 | Sterling | | Washery | | 4 | | Luzerne | Sterling Coal Co. | 31,000 | DL&W | 0 | 34,000 | 166 | 18 | |
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