DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| GM13 Geologic Map of New Castle County, Delaware | Ramsey, K.W. | |
| GM10 Bedrock Geologic Map of the Piedmont of Delaware and Adjacent Pennsylvania | Schenck, W.S., Plank, M.O., Srogi, L. |
Geologic and hydrologic research and exploration for Delaware