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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1886 | Keystone | | Colliery | Slope / Drifts | 2 | Plains Twp. | Luzerne | Keystone Coal Co. | 2,457 | | 0 | 2,607 | 17 | 110 | | 1887 | Keystone | | Colliery | Slope / Tunnel | 2 | Plains Twp. | Luzerne | Keystone Coal Co. | 89,599 | | 0 | 89,786 | 258 | 250 | | 1888 | Keystone | | Colliery | Slope / Tunnel | 2 | Plains Twp. | Luzerne | Keystone Coal Co. | 118,469 | | 0 | 119,018 | 250 | 336 | | 1889 | Keystone | | Colliery | Slope / Tunnel | 2 | Plains Twp. | Luzerne | Keystone Coal Co. | 100,325 | | 0 | 102,301 | 162 | 366 | | 1890 | Keystone | | Colliery | Slope | 2 | Plains Twp. | Luzerne | Keystone Coal Co. | 94,384 | | 0 | 95,498 | 175 | 269 | | 1891 | Keystone | | Colliery | Slope | 3 | Plains Twp. | Luzerne | Keystone Coal Co. | 99,040 | | 0 | 99,742 | 202 | 282 | | 1892 | Keystone | | Colliery | Slope | 3 | Plains Twp. | Luzerne | Keystone Coal Co. | 106,387 | | 0 | 107,256 | 187 | 320 | | 1893 | Keystone | | Colliery | Slope | 3 | Plains Twp. | Luzerne | Keystone Coal Co. | 89,976 | | 0 | 90,773 | 178 | 271 | | 1894 | Keystone | | Colliery | Shaft / Slope | 3 | Plains Twp. | Luzerne | Keystone Coal Co. | 94,820 | | 0 | 102,964 | 161 | 328 | | 1895 | Ridgewood | | Colliery | Shaft / Slope | 3 | Plains Twp. | Luzerne | Keystone Coal Co. | 93,760 | | 0 | 103,074 | 129 | 312 | | 1896 | Ridgewood | | Colliery | Shaft / Slope | 3 | Plains Twp. | Luzerne | Keystone Coal Co. | 100,887 | | 0 | 110,567 | 128 | 374 | | 1897 | Ridgewood | | Colliery | Shaft / Slope | 3 | Plains Twp. | Luzerne | Keystone Coal Co. | 98,557 | | 0 | 109,201 | 123 | 381 | | 1898 | Ridgewood | | Colliery | Shaft / Slope | 3 | Plains Twp. | Luzerne | Keystone Coal Co. | 90,718 | CNJ | 0 | 101,575 | 155 | 324 | | 1899 | Ridgewood | | Colliery | Shaft | 3 | Plains Twp. | Luzerne | Keystone Coal Co. | 50,342 | | 0 | 59,265 | 112 | 221 | |
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