U.S. Geological Survey Open-File Report 2012-1157
Shallow Geology, Seafloor Texture, and Physiographic Zones of the Inner Continental Shelf from Nahant to Northern Cape Cod Bay, Massachusetts
OUTLINE25K_POLY_UTM: Outline of the Commonwealth of Massachusetts (1:25,000) from the Massachusetts Office of Geographic Information (MassGIS) as seen in ArcMap™ 9.3.