https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12311512Edit ImageSaveSaveEditCropCustom Text[Untitled photo, possibly related to: Stream pollution, Dubuque, Iowa]. Sourced from the Library of Congress.View public domain image source hereMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFSmall JPEG 1200 x 851 px | 300 dpiLarge JPEG 3500 x 2483 px | 300 dpiBest Quality JPEG 4399 x 3121 px | 300 dpiTIFF 4399 x 3121 px | 300 dpi | 26.19 MBFree Download[Untitled photo, possibly related to: Stream pollution, Dubuque, Iowa]. Sourced from the Library of Congress.More