| 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 |
|---|
| 1968 | Greenfield Road | 81-8 | Stripping | | 1 | | Lackawanna | Northwest Mining Co., Inc. | 0 | | 0 | 0 | 11 | 5 | New operation. No coal produced during 1968. |
| 1969 | Greenfield Road | 81-8 | Stripping | | 1 | | Lackawanna | Northwest Mining Co., Inc. | 4,632 | | 7,319 | 25,592 | 289 | 15 | Coal prepared at Olyphant, Huber, Taylor and Raymond breakers. |
| 1970 | Greenfield Road | 81-8 | Stripping | | 1 | | Lackawanna | Northwest Mining Co., Inc. | 1,521 | | 3,278 | 10,300 | 159 | 20 | Coal prepared at Huber, Taylor and Raymond breakers. |