This dataset provides a representation of the watercourses within the Oregon portion of the Columbia basin as well as coastal and Great Basin watersheds. A selected subset of streams were originally derived from the Framework hydrography dataset and include all records originally present within the 1:100,000 scale PNW Hydrography dataset, named 1:24,000 scale streams and unnamed 1:24,000 scale streams where ODFW managed aquatic resource information exist. The data were migrated to events on NHD between 2012 and 2014. Whole stream route events were synchronized to April 2017 NHD geometry from April through June 2017.