USGS - science for a changing world

USGS Home
Contact USGS
Search USGS

Oregon Water Science Center

Project Links

Contact

Daniel Wise

USGS

2130 SW 5th Ave.

Portland, OR 97201

503-251-3213

dawise@usgs.gov

SPARROW

Pacific Northwest

Primary Sources of Total Nitrogen (2002)

<IMG alt="button" src="images/button.jpg" width=108 height=46>

<IMG alt="button" src="images/button.jpg" width=108 height=46>

<IMG alt="button" src="images/button.jpg" width=108 height=46>

<IMG alt="button" src="images/button.jpg" width=108 height=46>

<IMG alt="button" src="images/button.jpg" width=108 height=46>

Primary Sources of Total Nitrogen Load Generated Within Incremental Watersheds of the PNW

map of Columbia River Basin

Location Map

Primary Sources of Total Nitrogen Load

Click on a 6-digit, 3rd-level hydrologic unit code (HUC6) watershed for share of total load contributed by different sources

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
URL: http://or.water.usgs.gov/sparrow/index.html
Page Contact Information: Steven Sobieszczyk
Page Last Modified: Friday - Jan 4, 2013 at 19:30:22 EST