@Map {224,
	title = {Bedrock geologic map of the Marlborough quadrangle, Massachusetts},
	year = {2004},
	publisher = {Massachusetts Geological Survey},
	edition = {GM-06-01},
	keywords = {$\#$BedrockMaps, $\#$MGSPub, alaskite, amphibolite, Andover Granite, Ashland, Berlin, Bloody Bluff, Burlington Mylonite Zone, epidote, fault zone, gneiss, granite, granofels, Hope Valley Alaskite, Hopkinton, Hudson, Indian Head Hill, Lake Char, Malborough, Milford granite, Milham Reservoir, mylonite, Northborough, quartzite, schist, shear zone, Southborough, volcanic, Waltham Tectonic Melange, Westborough, Wolfpen Lens},
	author = {Joseph P Kopera and DiNitto, R.G. and Hepburn, J.C.}
}
@Map {238,
	title = {Preliminary bedrock geologic map of the Ayer quadrangle, Massachusetts},
	year = {2006},
	publisher = {Massachusetts Geological Survey},
	edition = {OFR-06-02},
	abstract = {<p>
	This preliminary version of the Bedrock Map of the Ayer Quadrangle (Kopera, 2006) has been removed pending the release of an updated version in the near future. The above version should be considered outdated. If you would like a copy of this map, please contact Joseph Kopera at jkopera[at]geo[dot]geo[dot] umass[dot]edu</p>
},
	keywords = {$\#$BedrockMaps, $\#$MGSPub, arsenic, Ayer, ayer granite, Berwick formation, Boxborough, chelmsford granite, Clinton-Newbury Fault, Devens, Fort Devens, Groton, Harvard, Jahns, LITTLETON, Merrimack Terrane, mylonite, nashoba, Nashua Trough, Oakdale formation, Shepley{\textquoteright}s Hill Landfill, Shirley, tadmuck brook schist, Worcester Formation},
	url = {http://www.geo.umass.edu/stategeologist/},
	author = {Joseph P Kopera}
}
