20221206 13493700 1.0 TRUE Historic Oyster Planting 1958-1999 This layer depicts areas where oyster repletion activities were conducted by Maryland DNR and partners in the Choptank River study area between 1958 and 1999, represented as polygons. A bay-wide version of this layer is available from Maryland’s Mapping and GIS Data Portal (MD iMAP) as “Maryland Shellfish - Historic Oyster Plantings”. Maryland Department of Natural Resources