@Map {220, title = {[Digital Conversion] Bedrock geologic map of the Gloucester and Rockport quadrangles, Massachusetts}, year = {2007}, publisher = {Massachusetts Geological Survey}, edition = {DC-07-01}, abstract = {

Digitized version of\ U.S. Geological Survey Miscellaneous Investigations Series Map I-2285

}, keywords = {$\#$BedrockMaps, $\#$MGSPub, Cape Anne granite, Essex, Gloucester, granite, Ipswich, Manchester, MGS Publication, pluton, quarry, Rockport}, author = {Dennen W. and Fernandez M.} }