| 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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| 1930 | Boland | | Colliery | | 1 | Carbondale 1 | Lackawanna | Carova Coal Mining Co. | 65,493 | D&H | 0 | 65,443 | 298 | 79 | Coal prepared at Langcliffe Breaker, 7th District. | | 1930 | Tappans | | Colliery | Slope 1 | 2 | | Lackawanna | Carova Coal Mining Co. | 116,345 | D&H | 0 | 117,689 | 243 | 279 | Coal prepared at Carova Coal Co. Breaker, 7th District Avoca. |
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