Address Alias Point locations. The dataset contains locations and attributes of Address Alias points, created as part of the Master Address Repository (MAR) for the D.C. Office of the Chief Technology Officer (OCTO) and participating D.C. government agencies. It contains the addresses alias names in the District of Columbia which are typically placed on the buildings. These alias names represent named features such as: - Schools - Federal Buildings - Military Installations - Hospitals - Museums - Monuments - University Structures - Fire and Police Stations - Libraries - Metro Facilities - Historical Landmarks - Recreation Centers All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters.