CalTopo - Backcountry topographic maps. at <http://caltopo.com/>

The Massachusetts DEP Hydrogeologic Information Matrix. at <http://www.mass.gov/eea/docs/dep/water/compliance/hydromat.pdf>

MassGIS. at <http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/>

Scanned "newer" 1:25K topographic maps (from MassGIS). at <http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic- information-massgis/datalayers/imquad.html>

UNH Historic Map Library for New England. at <http://docs.unh.edu/nhtopos/nhtopos.htm>

What 7.5' quadrangle am I in?: A PDF of a paper map. at <http://www.geo.umass.edu/stategeologist/Quads_Towns_WS7_34x44.pdf>

What 7.5' quadrangle am I in?: KMZ of 7.5" quadrangles for use in Google Earth. at <http://www.geo.umass.edu/stategeologist/QuadTownsWatersheds.kmz>