Baltimore CityThis dataset represents the area of land that drains all the streams and rainfall to a common outlet such as a reservoir or bay. To leave feedback or ask a question about this dataset, please fill out the following form: Major Drainage feedback form.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/00156edf8258493fa28384e0aa8286a8_0engOpen BaltimorePublicMajor Drainage [Maryland--Baltimore]Web servicesMaryland--BaltimoreMarylandLast Modified: 2025-07-22