Kopera, J. P. & Mabee, S. B. Preliminary field report on the November 13th-14th, 2011 landslide near Steam Mill Road, Deerfield, Massachusetts. Open File Report 19 (Massachusetts Geological Survey, 2011). at <http://www.geo.umass.edu/stategeologist/Products/reports/Deerfield_LS_Report_final.pdf>