DNR/MGSBottom classification polygons represent the general type of sediment on the seafloor. Determined from acoustic data analysis and grab sampling. This is a MD iMAP hosted service layer. Find more information at https://imap.maryland.gov . Feature Service Layer Link: https://mdgeodata.md.gov/imap/rest/services/Geoscientific/MD_Soils/MapServer/10ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/ac2c43c255ba4bda8935246f8649fd8f_10engMaryland iMapPublicMaryland Soils - Coastal Zone Bottom Classes [Maryland]Web servicesMarylandLast Modified: 2025-05-12