| Lat / long: | 39.69222, -76.23855 |
| Primary: | Feldspar |
| Operation type: | Surface |
| Development status: | Past Producer |
| MAS | 240250019 |
| DEP | 10121297 |
| Reference | {Deposit:: SINGEWALD, JR, J T, 1928, MD.G.S. VOL 12, PART 2, P. 109.}{Deposit:: FOR LOCATION SEE MAP ATTACHED TO RILEY QUARRY,CECIL CO.-LIST}{Deposit:: NO.13.}{Deposit:: REF:PEARRE,1960,U.S.G.S.BULL.1082-K,PG.811.} |
| Reporter | Eastern Field Operations Center (EFOC) |