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区域河流中心线数据集。其参考数据源涵盖2004至2007年的激光雷达（LiDAR）数据、航空影像及已矢量化的雨水收集系统数据。该数据集可通过www.PortlandMaps.com在线查阅。—— 附加信息：类别：Hydro（水文），用途：用于绘制河流中心线的空间位置，更新频率：按需更新。—— 元数据链接：https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=53227