| 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 |
|---|
| 1898 | Chauncey | | Colliery | Slope 1 | 4 | Plymouth Twp. | Luzerne | George W. Milnes | 77,996 | DL&W | 0 | 80,697 | 156 | 237 | | | 1899 | Chauncey | | Colliery | Slope 1 | 4 | Plymouth Twp. | Luzerne | George W. Milnes | 37,640 | DL&W 1 | 0 | 46,200 | 92 | 183 | |
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