DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| GM24 Geologic Map of the Millington, Clayton and Smyrna Quadrangles, Delaware | Ramsey, K.W., Tomlinson, J.L. | |
| GM13 Geologic Map of New Castle County, Delaware | Ramsey, K.W. |
Geologic and hydrologic research and exploration for Delaware