DGS Publications
| Title | Authors | Publication Date |
|---|---|---|
| OFR54 Bedrock Geologic Map of the Delaware Piedmont | Schenck, W.S. | |
| OFR19 Regolith Thickness of the Delaware Piedmont | Woodruff, K.D., Christopher, M.J. | |
| OFR14 Sinkholes, Hockessin Area, Delaware | Talley, J.H. |