| 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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| 1931 | Ridge Mountain | | Colliery | | 6 | | Lackawanna | Ridge Mountain Coal Co. | 20 | | 0 | 20 | 3 | 12 | | | 1932 | Ridge Mountain | | Colliery | | 6 | | Lackawanna | Ridge Mountain Coal Co. | 2,834 | | 3,228 | 6,162 | 246 | 45 | | | 1933 | Grove Hill | | Colliery | Slope 1 | 6 | | Lackawanna | Ridge Mountain Coal Co. | 0 | Truck 1 | 13,642 | 13,747 | 143 | | |
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