Willamette River Water Quality Map

This map highlights water pollution issues in the Willamette River System. It was produced in 1997 by the Corvallis Environmental Center. You can download the map here as Adobe PDF files -- please note that the optimal printing size 24 x 38 inches.

• Download a low resolution version of the map.
  • map front (1.5 MB) - WillametteRiverWQfront_small.pdf
  • map back (4 MB) - WillametteRiverWQback_small.pdf
• Download a high resolution version of the map that is better for printing but is a VERY LARGE file.
  • map front (177 MB) - WillametteRiverWQfront.pdf
  • map back (133 MB) - WillametteRiverWQback.pdf