6-m resolution gray-scale image of shaded-relief multibeam bathymetry in western Massachusetts Bay map Quadrangle 2 (Q2_SRELIEF.TIF)

The U.S. Geological Survey has conducted geologic mapping to characterize the sea floor offshore of Massachusetts. The mapping was carried out using a Simrad Subsea...美国地质调查局（U.S. Geological Survey）已针对马萨诸塞州近海海底开展地质测绘工作，以刻画其地质特征。本次测绘采用Simrad Subsea相关设备完成。