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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1922 | Park Hill | | Colliery | | 5 | | Lackawanna | Park Hill Coal Co. | 4,520 | D&H / DL&W | 0 | 5,769 | 85 | 35 | Coal prepared at Slocum Colliery. | 1923 | Park Hill | | Colliery | | 5 | | Lackawanna | Park Hill Coal Co. | 17,158 | D&H | 0 | 20,711 | 289 | 40 | Coal prepared at Slocum Hollow Colliery. | 1924 | Park Hill | | Colliery | | 5 | | Lackawanna | Park Hill Coal Co. | 13,642 | | 0 | 22,953 | 278 | 40 | | 1925 | Park Hill | | Colliery | | 5 | | Lackawanna | Park Hill Coal Co. | 11,006 | D&H | 0 | 19,577 | 196 | 39 | | 1926 | Park Hill | | Colliery | | 5 | | Lackawanna | Park Hill Coal Co. | 10,441 | D&H | 0 | 15,282 | 230 | 28 | |
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