TY - RPRT TI - Time-series photographs of the sea floor in western Massachusetts Bay: May 1999 to September 1999; May 2000 to September 2000; and October 2001 to February 2002 AU - Bradford Butman AU - P. Soupy Alexander AU - Michael H. Bothner PY - 2004 DO - 10.3133/ds97 UR - https://pubs.usgs.gov/publication/ds97 ID - ds97 ER -