Becker, L. R. et al. Improving seismic hazard assessment in New England through the use of surficial geologic maps and expert analysis. Geological Society of America Abstracts with Programs 45, 50 - 51 (2013).

National Geologic Map Database. at <http://ngmdb.usgs.gov>

USGS Surficial Geologic Map Compilations (OFR 2006-1260). at <http://pubs.usgs.gov/of/2006/1260>