| 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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| 1919 | Marshwood | | Colliery | | 6 | Olyphant 1 | Lackawanna | Bald Mountain Coal Co. | 37,207 | DL&W | 0 | 38,170 | 185 | 110 | Operated by Moosic Mt. Coal Co. prior to July 1919. Coal prepared at Mt Jessup No. 1 Breaker. | | 1920 | Marshwood | | Colliery | | 6 | Olyphant 1 | Lackawanna | Bald Mountain Coal Co. | 50,133 | DL&W / Erie | 0 | 50,871 | 279 | 136 | Coal prepared at Mount Jessup No. 1 Breaker. | | 1921 | Marshwood | | Colliery | | 6 | Olyphant 1 | Lackawanna | Bald Mountain Coal Co. | 66,053 | DL&W | 0 | 66,804 | 291 | 153 | Coal prepared at Mount Jessup No. 1 Breaker. | | 1922 | Marshwood | | Colliery | | 6 | Olyphant 1 | Lackawanna | Bald Mountain Coal Co. | 15,437 | DL&W | 0 | 17,703 | 125 | 94 | Coal prepared at Mt Jessup No. 2 Breaker, 1st District. | | 1923 | Marshwood | | Colliery | | 1 | Olyphant 1 | Lackawanna | Bald Mountain Coal Co. | 38,889 | DL&W | 0 | 42,228 | 280 | 104 | Coal prepared at Mt Jessup No. 2 Breaker, 1st District. | | 1924 | Marshwood | | Colliery | | 1 | Olyphant 1 | Lackawanna | Bald Mountain Coal Co. | 12,041 | | 0 | 12,420 | 75 | 95 | Coal prepared at Mt Jessup No. 2 Breaker, 1st District. |
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