| 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 |
|---|
| 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 | |
| 1920 | West Mountain | | Colliery | | 2 | | Lackawanna | Falls Coal Co. | 0 | | 0 | 0 | | | Abandoned. |
| 1927 | West Jermyn | | Colliery | | 2 | | Lackawanna | West Jermyn Coal Co. | 5,683 | NYO&W | 0 | 5,816 | 261 | 33 | Coal prepared at Kingston No. 4 Breaker, 9th District. |
| 1928 | West Jermyn | | Washery | | 2 | | Lackawanna | West Jermyn Coal Co. | 10,341 | NYO&W | 0 | 11,341 | 285 | 22 | |
| 1931 | West Mountain | | Colliery | | 1 | | Lackawanna | Allgood & Barrett Co. | 250 | | 0 | 250 | 45 | 14 | Coal prepared at Kingston Coal Co. Breaker |
| 1932 | West Jermyn | | Colliery | | 2 | | Lackawanna | West Jermyn Coal Co. | 200 | | 2,000 | 2,500 | 126 | 28 | |
| 1933 | West Jermyn | | Colliery | | 2 | | Lackawanna | West Jermyn Coal Co. | 8,900 | | 2,150 | 12,000 | 185 | 23 | |
| 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. |
| 1959 | West Jermyn | | Stripping | | 1 | | Lackawanna | Slenska Coal Co. | 553 | | 2,366 | 2,919 | 235 | 4 | Coal prepared at Bolands and Penbrook breakers. |
| 1960 | West Jermyn | | Stripping | | 1 | | Lackawanna | Slenska Coal Co. | 0 | | 0 | 1,050 | 208 | 2 | Coal sold to local sales. |
| 1961 | West Jermyn | | Stripping | | 1 | | Lackawanna | Slenska Coal Co. | 164 | | 0 | 861 | 97 | 4 | Coal prepared at Penbrook and Bolands breakers. |
Note 1: Added, does not appear in the mine inspection report.
