| 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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| 1916 | Elk Brook | | Colliery | | 1 | Scranton 1 | Lackawanna | Elk Brook Coal Co. | 0 | | 0 | 0 | | 10 | In course for development for stripping. | | 1917 | Richmondale | | Colliery | Slope | 1 | Scranton 1 | Lackawanna | Elk Brook Coal Co. | 9,431 | NYO&W | 0 | 9,931 | 302 | 70 | | | 1918 | Richmondale | | Colliery | Slope | 1 | Scranton 1 | Lackawanna | Elk Brook Coal Co. | 15,650 | NYO&W | 0 | 16,825 | 280 | 100 | |
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