Skip to main content
USGS - science for a changing world

Hydrologic Unit Boundaries, 4th field sub-basin, Portland Metro Region, Oregon


Original Data Basin Creation Date
2012-07-04 14:17:08
Original Data Basin Modified Date
2012-07-04 14:17:08


This geospatial dataset is a hydrologic unit boundary layer for the Sub-basin (8-digit) level. The dataset is a subset of the 4th level (8-digit) hydrologic unit boundaries of the Watershed Boundary Dataset (WBD) layer for Oregon. It was created by dissolving boundaries from the finer resolution hydrologic units (those of the 5th or 10-digit level) to create these broader boundaries. Boundaries within the this data set were delineated by Pacific Northwest (PNW) Hydrography Framework Partners and Natural Resources Conservation Service (NRCS) to meet state requirements and to contribute to the national WBD repository. To meet these goals, the WBD must adhere to the "Federal Standards for Delineation of Hydrologic Unit Boundaries", dated [...]


Data Owner :
Katie O'Connor
Preview Image



  • Data Basin



Data source
Metro Data Resource Center<br /> &copy; Oregon Metro <a href=""></a>
Harvested on Fri May 23 09:37:14 MDT 2014 from Data Basin Service

Additional Information


Type Scheme Key
UniqueKey Data Basin e0884efb326f4ae5a0499bc2123802a3

Item Actions

View Item as ...

Save Item as ...

View Item...