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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1884 | Dolph | | Colliery | Tunnel | Eastern | Winton | Lackawanna | Edward Dolph | 0 | DL&W | 0 | 11,699 | 135 | 148 | | 1885 | Dolph | | Colliery | Tunnel | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 23,731 | DL&W | 0 | 23,909 | 134 | 174 | | 1886 | Dolph | | Colliery | Tunnel | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 61,627 | DL&W | 0 | 62,195 | 184 | 271 | | 1887 | Dolph | | Colliery | Tunnel | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 67,934 | | 0 | 68,433 | 201 | 229 | | 1888 | Dolph | | Colliery | Tunnel | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 66,631 | | 0 | 69,759 | 192 | 228 | | 1889 | Dolph | | Colliery | Tunnel | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 76,463 | | 0 | 79,087 | 168 | 342 | | 1890 | Dolph | | Colliery | Drift | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 85,810 | | 0 | 87,836 | 155 | 256 | | 1891 | Dolph | | Colliery | Tunnel | 2 | Winton | Lackawanna | Dolph Coal Co., Limited | 67,040 | | 0 | 69,489 | 144 | 237 | | 1892 | Dolph | | Colliery | Drift 1 | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 55,384 | | 0 | 57,079 | 98 | 289 | | 1893 | Dolph | | Colliery | Drift 1 | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 101,388 | | 0 | 103,804 | 174 | 415 | | 1894 | Dolph | | Colliery | Drift 1 | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 52,954 | | 0 | 54,491 | 90 | 438 | | 1895 | Dolph | | Colliery | Drift 1 | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 107,114 | | 0 | 109,937 | 121 | 437 | | 1896 | Dolph | | Colliery | Drift 1 | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 117,954 | | 0 | 120,711 | 123 | 556 | | 1897 | Dolph | | Colliery | Drift 1 | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 202,183 | | 0 | 225,622 | 103 | 574 | | 1898 | Dolph | | Colliery | Drift 1 | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 156,373 | NYS&W | 0 | 179,200 | 110 | 600 | | 1899 | Dolph | | Colliery | Drift 1 | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 166,584 | | 0 | 182,879 | 143 | 544 | | 1900 | Dolph | | Colliery | Drift 1 | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 135,595 | E&WV | 0 | 160,049 | 140 | 526 | | 1901 | Dolph | | Colliery | Drift 1 | 1 | Winton | Lackawanna | Dolph Coal Co., Limited | 182,885 | Erie | 0 | 208,692 | 201 | 558 | | 1902 | Dolph | | Colliery | Drift 1 | 1 | Winton 1 | Lackawanna | Dolph Coal Co., Limited | 101,715 | Erie | 0 | 121,633 | 115 | 492 | | 1902 | Dolph | | Washery | | 1 | Winton 1 | Lackawanna | Dolph Coal Co., Limited | 1,591 | Erie | 0 | 1,591 | | | | 1903 | Dolph | | Colliery | Dolph Drift / Hannabel Slope | 2 | Winton 1 | Lackawanna | Dolph Coal Co., Limited | 189,084 | Erie | 0 | 214,839 | 218 | 559 | | 1903 | Dolph | | Washery | | 2 | Winton 1 | Lackawanna | Dolph Coal Co., Limited | 480 | Erie | 0 | 490 | | | | 1904 | Dolph | | Colliery | Slope / Drift / Hannah Bell Slope | 2 | Winton 1 | Lackawanna | Dolph Coal Co., Limited | 255,120 | D&H / Erie | 0 | 281,289 | 223 | 622 | | 1905 | Dolph | | Colliery | Slope / Drift (2) | 2 | Winton 1 | Lackawanna | Dolph Coal Co. | 221,042 | D&H | 0 | 247,087 | 189 | 639 | | 1906 | Dolph | | Colliery | Hackley Slope / Hannah Bell Slope / Clark Vein Drift | 2 | Winton 1 | Lackawanna | Dolph Coal Co. | 264,772 | Erie | 0 | 290,897 | 205 | 670 | | 1907 | Dolph | | Colliery | Hackley Slope / Hannah Bell Slope / Clark Vein Drift | 2 | Winton 1 | Lackawanna | Dolph Coal Co. | 248,024 | Erie | 0 | 274,217 | 207 | 559 | | 1908 | Dolph | | Colliery | Hackley Slope / Hannah Bell Slope / Clark Vein Slope | 2 | Winton 1 | Lackawanna | Dolph Coal Co. | 183,913 | Erie | 0 | 209,784 | 167 | 538 | | 1909 | Dolph | | Colliery | Hackley Slope / Hannah Bell Slope / Clark Vein Slope | 2 | Winton 1 | Lackawanna | Dolph Coal Co. | 146,566 | Erie | 0 | 172,609 | 147 | 551 | | 1910 | Dolph | | Colliery | Hackley & Clark Shaft / Hannah Bell Slope | 2 | Winton 1 | Lackawanna | Dolph Coal Co., Limited | 143,994 | Erie | 0 | 171,386 | 160 | 558 | | 1911 | Dolph | | Colliery | Hackely Slope / Hanuah Bell Slope | 2 | Winton 1 | Lackawanna | Dolph Coal Co., Limited | 140,892 | Erie | 0 | 166,914 | 143 | 464 | | 1912 | Dolph | | Colliery | Hackely Slope / Dolph Slope | 2 | Winton 1 | Lackawanna | Dolph Coal Co., Limited | 101,177 | Erie | 0 | 127,310 | 126 | 423 | | 1913 | Dolph | | Colliery | Dolph Slope / Dolph Drift / Hackely Slope | 21 | Winton 1 | Lackawanna | Dolph Coal Co., Limited | 87,337 | Erie | 0 | 113,214 | 164 | 444 | | 1914 | Dolph | | Colliery | Dolph Slope / Dolph Drift / Hannah Bell Slope | 21 | Winton 1 | Lackawanna | Dolph Coal Co., Limited | 42,588 | Erie | 0 | 58,483 | 78 | 423 | | 1915 | Dolph | | Colliery | Dolph Slope / Dolph Drift / Hannah Bell Slope | 21 | Winton 1 | Lackawanna | Dolph Coal Co., Limited | 38,207 | Erie | 0 | 54,592 | 81 | 403 | |
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