| Lat / long: | 38.74947, -76.68439 |
| Primary: | Diatomite |
| Operation type: | Unknown |
| Deposit type: | Sedimentary |
| Production size: | Yes |
| Development status: | Producer |
| First production started: | 1884 |
| Host rock: | Calvert Formation, Diatomaceous Clay |
| Host type: | Clay, Mud |
| MRDS | W000837 |
| DEP | 10110275 |
| Reference | {Deposit:: MILLER, B.L., ET AL, 1907, MD. GEOLOGICAL SURVEY CALVERT CO. REPT. P. 130-131}{Deposit:: SHATTUCK, G.B. , ET AL, 1907, USGS FOLIO 152, P. 11}{Deposit:: KNECHTEL, M.N., AND HOSTERMAN, 1965, USGS PP 525 D, P. D151-D152} |
| Reporter | Wright, Nancy A. |