@online {129,
	title = {The Massachusetts DEP Hydrogeologic Information Matrix},
	publisher = {MassDEP},
	abstract = {An index of all USGS geologic maps and hydrogeologic publications for Massachusetts, cross-referenced and indexed by town and 7.5{\textquoteright} quadrangle.  This is an extremely valuable resource for finding geologic data for a given site.
},
	keywords = {$\#$BedrockMaps, $\#$Hydro, $\#$MapDatabase, $\#$MapsDataPublications, $\#$QuadIndex, $\#$SurficialMaps, aquifer, catalog, data, database, GEOLOGIC MAP, ground source heat pumps, groundwater, hydrogeology, index, maps, quadrangles, water resources},
	url = {http://www.mass.gov/eea/docs/dep/water/compliance/hydromat.pdf}
}
@online {127,
	title = {National Geologic Map Database},
	publisher = {USGS},
	abstract = {Search here first for any and all geologic map data for the Commonwealth before searching the links below.},
	keywords = {$\#$MapDatabase, $\#$MapsDataPublications, catalog, data, database, GEOLOGIC MAP, index, maps},
	url = {http://ngmdb.usgs.gov/}
}
@online {136,
	title = {Reading Maps with a Critical Eye: Becoming an Informed Map Reader},
	publisher = {Maine Geological Survey},
	abstract = {New to using geologic maps? This is a great guide to learning how to read and get the most out of geologic maps},
	keywords = {$\#$MapsDataPublications, $\#$UsingGeologicMaps, catalog, data, database, GEOLOGIC MAP, how to, index, maps, using geologic maps},
	url = {http://www.maine.gov/doc/nrimc/mgs/mapuse/informed/informed.htm}
}
@online {128,
	title = {USGS Publications Warehouse},
	publisher = {USGS},
	abstract = {Search here second for any and all geologic data for the Commonwealth before searching the links below.},
	keywords = {$\#$MapDatabase, $\#$MapsDataPublications, catalog, data, database, GEOLOGIC MAP, index, maps},
	url = {http://infotrek.er.usgs.gov/pubs/}
}
@online {134,
	title = {What 7.5{\textquoteright} quadrangle am I in?: A PDF of a paper map},
	publisher = {MassGIS},
	abstract = {<p>Download a PDF map showing which towns are in which 7.5{\textquoteright} quadrangles.</p>},
	keywords = {$\#$MapsDataPublications, $\#$QuadIndex, catalog, data, database, GEOLOGIC MAP, index, maps, quadrangles, what town},
	url = {http://www.geo.umass.edu/stategeologist/Quads_Towns_WS7_34x44.pdf}
}
@online {135,
	title = {What 7.5{\textquoteright} quadrangle am I in?: KMZ of 7.5" quadrangles for use in Google Earth},
	publisher = {MGS},
	abstract = {<p>A Google Earth KMZ file showing the locations of 7.5{\textquoteright} quadrangles in Massachusetts</p>},
	keywords = {$\#$MapsDataPublications, $\#$QuadIndex, catalog, data, database, GEOLOGIC MAP, index, maps, quadrangles, what town},
	url = {http://www.geo.umass.edu/stategeologist/QuadTownsWatersheds.kmz}
}
