20210303 14563700 1.0 TRUE City of Portland Streams Regional stream centerline dataset. Reference sources include 2004 through 2007 LiDAR data, aerial photos, and the mapped stormwater collection system. This data can be viewed online at www.PortlandMaps.com. --Additional Information: Category: Hydro Purpose: For mapping the location of stream centerlines. Update Frequency: As needed Bureau of Planning and Sustainability