| 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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| 1920 | Pleasant Mount | | Washery | | 3 | | Lackawanna | Pleasant Mount Coal Co. | 63,256 | NYO&W | 0 | 63,406 | 124 | 79 | | | 1921 | Pleasant Mount | | Washery | | 3 | | Lackawanna | Pleasant Mount Coal Co. | 7,067 | NYO&W | 0 | 7,116 | 53 | 15 | | | 1922 | Pleasant Mount | | Washery | | 3 | | Lackawanna | Warren T. Acker & Others | 23,471 | NYO&W | 0 | 23,471 | 67 | 18 | |
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