Otho, IA Mines
Mines in Otho, Iowa
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Breen-Jordison Quarry | National Gypsum Co. | Unknown | Gypsum-Anhydrite | |
| Cardiff Gypsum | Cardiff Gypsum Plaster Co. | Unknown | Gypsum-Anhydrite | |
| Fort Dodge Plant | Private | Gypsum-Anhydrite Perlite |
||
| Georgia Pacific Gypsum Quarry | Private | Gypsum-Anhydrite | ||
| Hoover Pits | Unknown | Sand and Gravel | ||
| Hudson/Otho Pit | Maudlin Const. Co. | Unknown | Sand and Gravel | |
| Johnston Clay Works | Roll, Inc. | Unknown | Clays | |
| Kalo Brick and Tile Co. | Kalo Brick And Tile Co | Unknown | Clays | |
| Unknown | Unknown | Flagstone | ||
| Unknown | U.S. Gypsum Co. | Unknown | Gypsum-Anhydrite | |
| Unknown | Unknown | Sand and Gravel | ||
| Vincent Clay Products Co. | Vincent Clay Products Co. | Unknown | Clays |