20210304 08065400 1.0 TRUE Combined Historic Landmarks and Districts A combined dataset of Historic and Conservation Districts, and Historic and Conservation Landmark building footprints. See individual layers for detailed descriptions. -- Additional Information: Category: Development Purpose: For mapping combined historic resources for Historic Resources database. Update Frequency: As Needed -- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=52856 Bureau of Planning and Sustainability