Campbell sold the Orme operation in 1905, and the new owners renamed the company, "Battle Creek Coal and Coke Company." By 1912, the operation consisted of four drift mines, some reaching high up the walls of the Cumberland Plateau. Mule-drawn rail cars carried the mined coal to the mine entrances, where it was transferred to a locomotive. The locomotive then carried the coal to an upper tipple, which in turn transferred it to a lower tipple. At its height, the mining operation was shipping 1,000 tons of coal per day out of the valley. The operation was known for its "good coal, inaccessibility, irregular stratification, and consequently difficult mining."