| Location: | Calvert County, Maryland, United States, North America |
| Lat / long: | 38.74947, -76.68439 |
| dep_id: | 10110275 |
| mrds_id: | W000837 |
| Commodity type: | nonmetallic |
| Major mineral: | Diatomite |
| Operation type: | Unknown |
| Deposit type: | Sedimentary |
| Production size: | Production occurred |
| Development status: | Producer |
| Reporter: | Wright, Nancy A. |
| hrock_unit: | Calvert Formation, Diatomaceous Clay |
| hrock_type: | Clay, Mud |
| Year first produced: | 1884 |
| References: |
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