Mahoning Mines or Ozark-Mahoning Group of Mines

The Ozark-Mahoning Company was the largest producer of fluorite and was the last major producer to operate in the region. This company operated a group of mines primarily northeast of Spar Mountain, but workings were connected to the older adjacent Spar Mountain Mines, making it difficult to identify individual mine boundaries (Figure 19). These Mahoning Mines had several shafts, of which No. 2, No. 3, No. 4, and No. 5 were active in 1950 (Davis 1953). The Penwalt Company purchased the Ozark-Mahoning Company in 1974, which then merged with Atochem North America in 1989 before finally ceasing mining operations in this district in 1995. A heavy media mill was also erected at this location.