@Map {359,
	title = {Bedrock geologic map of the Ayer 7.5{\textquoteright} quadrangle, Worcester and Middlesex Counties, Massachusetts (2015)},
	publisher = {Massachusetts Geological Survey},
	edition = {15-01},
	abstract = {<p>Editing and review are still underway. \&nbsp;This map should be available in winter 2015/2016</p>},
	keywords = {Ayer, ayer granite, Ayer Granodiorite, Ayer Quadrangle, Berwick, Campbell Hill Fault, chelmsford granite, Clinton Newbury Fault, Devens, Harvard Conglomerate, merrimack, Oakdale formation, pin hill, Shepley{\textquoteright}s Hill, Shirley Fault, tadmuck brook schist, Worcester Formation},
	author = {Joseph P Kopera}
}
@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 The above version should be considered outdated.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}
}
