Skehan, J. W. Roadside Geology of Massachusetts. (Mountain Press, 2001).

Geologic Fieldtrip Guidebook database for North America. at <http://guide.georef.org/dbtw-wpd/guidens.htm>

National Science Education Standards. at <http://www.uky.edu/KGS/education/edustand.htm>

Water Science for Schools (USGS). at <http://ga.water.usgs.gov/edu/>