Metro Data Resource CenterThis polygon data layer represents watersheds for Portland Metro, Oregon in 1999. The dataset was originally published by the Metro Data Resource Center in February 2001.[Watersheds for the region. Delineated by hand using USGS 7.5 minute quad topography. Improved by comparing to Oregon State Service Center for GIS (SSCGIS) fifth order stream information.]Shapefileark:/77981/gmgsbc3sw7nengPublicWatersheds Portland Metro, Oregon {1999}DatasetsOregon--Portland MetroOregon1999-07-01American Geographical Society Library – UWM Libraries