Description: The Surficial Sediment Footprints (polygon) feature class contains a collection of footprints which outline the geographic areas where surficial sediment/substrate has been classified via interpretations of sonar bathymetry, backscatter, side-scan sonar, and or interpolated using sediment data from geotechnical sampling / coring. To eliminate the potential of misrepresenting a very diverse field of information in a single feature class, the data itself is not presented here. Rather, this feature class is intended to assist users in understanding what data and data products are available. A citation is provided so that users may identify and locate the complete datasets if desired. Most of the studies represented herein were fully or partially funded by the Bureau of Ocean Energy Management (BOEM) or former Minerals Management Service (MMS). Attribution consists of study ID, substrate description/classification method, qualitative scale, data source file name, study report citation, and link to the study report and/or complete dataset (if available). Original study reports can be accessed via the related Link Documents table within the Marine Minerals Information System (MMIS) geodatabase. This dataset will be updated as new and existing data are received and incorporated in to the Marine Minerals Information System (MMIS) geodatabase.