Polygon delineation of Maryland oyster sanctuaries. The document "Oyster_Sanctuaries_of_the_Chespeake_Bay_and_Tidal_Tributaries_September 2010" is the source material for the features in this dataset. Section I of the document describes sanctuaries that were created prior to September 2010. Section II of the document describe sanctuaries that were created in September of 2010.This is a MD iMAP hosted service. Find more informationathttps://imap.maryland.gov.Feature Service Link:https://geodata.md.gov/imap/rest/services/Biota/MD_Shellfish/FeatureServer/5