DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| GM13 Geologic Map of New Castle County, Delaware | Ramsey, K.W. | |
| GM 2 Geology of the Middletown-Odessa Area, Delaware | Pickett, T.E., Spoljaric, N. | |
| GM 1 Geology of the Chesapeake and Delaware Canal Area, Delaware | Pickett, T.E. |