Clayton County, IA Phosphorus Mines
Phosphorus Mines in Clayton County, IA
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Outcrop | Phosphorus | |||
| Quarry | Phosphorus | |||
| Quarry | Phosphorus | |||
| Quarry | Phosphorus | |||
| Roadcut | Phosphorus | |||
| Roadcut | Phosphorus | |||
| Roadcut | Phosphorus | |||
| Roadcut | Phosphorus | |||
| Roadcut | Phosphorus | |||
| Volga Occurrence | Phosphorus |