| 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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| 1908 | West Mountain | | Colliery | Drift | 1 | | Lackawanna | West Mountain Coal Co. | 913 | NYO&W | 0 | 1,981 | 133 | 22 | | | 1909 | West Mountain | | Colliery | Drift | 1 | | Lackawanna | West Mountain Coal Co. | 2,696 | NYO&W | 0 | 5,259 | 159 | 49 | | | 1910 | West Mountain | | Colliery | Drift | 1 | | Lackawanna | West Mountain Coal Co. | 6,812 | NYO&W | 0 | 16,574 | 235 | 48 | | | 1911 | West Mountain | | Colliery | Drift | 1 | | Lackawanna | West Mountain Coal Co. | 10,211 | NYO&W | 0 | 15,177 | 237 | 45 | | | 1912 | West Mountain | | Colliery | Drift | 1 | | Lackawanna | West Mountain Coal Co. | 11,145 | NYO&W | 0 | 17,218 | 231 | 66 | | | 1913 | West Mountain | | Colliery | Drift | 1 | | Lackawanna | West Mountain Coal Co. | 13,390 | NYO&W | 0 | 20,011 | 271 | 60 | | | 1914 | West Mountain | | Colliery | Drift | 1 | | Lackawanna | West Mountain Coal Co. | 13,762 | NYO&W | 0 | 20,009 | 250 | 62 | | | 1915 | West Mountain | | Colliery | Drift | 1 | | Lackawanna | West Mountain Coal Co. | 7,180 | NYO&W | 0 | 12,376 | 202 | 53 | | | 1916 | West Mountain | | Colliery | Drift | 2 | | Lackawanna | West Mountain Coal Co. | 12,388 | NYO&W | 0 | 17,073 | 215 | 52 | | | 1917 | West Mountain | | Colliery | Drift | 2 | | Lackawanna | West Mountain Coal Co. | 12,386 | NYO&W | 0 | 16,275 | 254 | 35 | | | 1918 | West Mountain | | Colliery | Drift | 2 | | Lackawanna | West Mountain Coal Co. | 6,574 | NYO&W | 0 | 9,063 | 258 | 31 | | | 1919 | West Mountain | | Colliery | Drift 1 | 2 | | Lackawanna | West Mountain Coal Co. | 2,215 | NYO&W | 0 | 2,247 | 306 | 29 | | | 1934 | West Mountain | | Mine | | 5 | | Lackawanna | West Mountain Coal Co. | 171 | | 0 | 171 | 55 | 6 | | | 1939 | West Mountain | | Mine | | 1 | | Lackawanna | West Mountain Coal Co. | 925 | | 5,325 | 6,250 | 304 | 17 | | | 1940 | West Mountain | | Mine | | 1 | | Lackawanna | West Mountain Coal Co. | 2,274 | | 5,309 | 7,583 | 207 | 17 | Run of mine coal prepared at various breakers. | | 1941 | West Mountain | | Mine | | 1 | | Lackawanna | West Mountain Coal Co. | 1,297 | | 2,380 | 3,677 | 187 | 12 | Run of mine coal. | | 1942 | West Mountain | | Mine | | 1 | | Lackawanna | West Mountain Coal Co. | 456 | | 1,064 | 1,520 | 86 | 12 | Run of mine coal. | | 1957 | West Mountain | | Mine | | 2 | | Lackawanna | West Mountain Coal Co. | 0 | | 0 | 442 | 145 | 3 | Mine employing less than five persons. |
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