The semi-bituminous coal bed at Jerome, part of the Upper Kittanning formation, was approximately six feet thick, capped by shale and limestone, with a smooth, hard sandstone floor. In 1911, the mine had a capacity of 1,700 tons a day, with an average daily output of 1,020 tons. The tipple had four loading tracks with a capacity of 80 cars. Within the tipple, coal was cleaned first by machine through shaker screens, then by hand, along a conveyor and at loading. Refuse coal and rock was dumped in a hillside to the south of the tipple.