High Quality Content by WIKIPEDIA articles! Pocahontas Exhibition Coal Mine, also known as Pocahontas Mine No. 1, or Baby Mine, is an inactive coal mine in the Pocahontas coalfield. The mine was the first in the sub-bituminous coal of the Pocahontas coalfield, opening in 1882. In 1938 it became the first exhibition coal mine in the United States. Uniquely, it was possible to drive one`s automobile through the mine, entering through the fan opening and exiting through the original entry. The practice continued until 1970, when it was discontinued due to damage to the roof of the mine from car exhaust.