This dataset contains the data for the currently published Surficial Geology of the Maine Inner Continental Shelf Quadrangle Maps of Maine at 1:100,000 scale. In addition to a description of the seafloor surficial materials, the maps include the location of natural gas deposits, shipwrecks seismic reflection profiles, samples, submersible dives, vibracores, and sources of geologic information. Published maps are available at https://www.maine.gov/dacf/mgs/pubs/online/ics/ics.htm.