Reference

Cuttyhunk Island, part of the Elizabeth Islands in Massachusetts, is geographically classified by the U.S. Geological Survey (USGS) based on detailed geological mapping and geophysical data. According to a high-resolution geophysical report by the USGS, Cuttyhunk Island is analyzed in terms of its sea floor surrounding geography, sediment texture, physiographic zones, and seismic stratigraphy.

The USGS Massachusetts Cuttyhunk Map also shows detailed topographic and geologic features, indicating the island's bedrock, land surface, and other geological attributes.

For a more visual representation, here is an antique topographic map of Cuttyhunk Island by the USGS from 1951: