| 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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| 1955 | Maffei | | Stripping | | 9 | | Luzerne | Boston Coal Co. | 1,229 | | 0 | 1,229 | 82 | 3 | Coal prepared at Heidelberg, Duryea and Morgan breakers. |
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