Baltimore County GovernmentAs of Bill 93-05, Landmark Structures also include a Historic Environmental Setting (HES). "Historic Environmental Setting" means the property or lot or portion thereof, as delineated by the Commission, which is historically, architecturally, archeologically or culturally connected to the historic significance of a landmark structure.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/0d7614eca95549d4a16a337df9d5f85d_6engBaltimore County Open Data PortalPublichistoric features [Maryland--Baltimore County]Web servicesMaryland--Baltimore CountyMarylandLast Modified: 2025-02-28