| 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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| 1875 | Maltby | | Colliery | Shaft / Tunnel | Middle | near Wyoming | Luzerne | S. C. Maltby | 0 | | 0 | 0 | | | Idle. | | 1876 | Maltby | | Colliery | Shaft | Middle | near Wyoming | Luzerne | S. C. Maltby | 0 | | 0 | 0 | | | |
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