20210303 08583700 1.0 TRUE Stream Centerlines 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 -- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=53227 Bureau of Planning and Sustainability