| 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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| 1938 | Spring Brook | | Colliery | | 7 | Avoca 1 | Luzerne | Spring Brook Preparation Co. | 0 | | 0 | 0 | 88 | 20 | Prepared coal from other sites only. | | 1939 | Spring Brook | | Colliery | | 7 | Avoca 1 | Luzerne | Spring Brook Preparation Co. | 0 | | 0 | 0 | 214 | 9 | Preparation only. |
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