Pollution sewage river green. AI generated Image by rawpixel. https://www.rawpixel.com/image/13168177/pollution-sewage-river-green-generated-image-rawpixelView licenseLower end of valley and the outlet gorge of Wainuiomata River from just north of neck of narrowed ridge ending at Para Trig… https://www.rawpixel.com/image/13030771/image-plant-people-grassFree Image from public domain licenseOutlet of Surprize [sic] Valley Colorado River. by Charles William Carter https://www.rawpixel.com/image/14290029/outlet-surprize-sic-valley-colorado-river-charles-william-carterFree Image from public domain licenseOutlet gorge of Wainuiomata River with Te Raina pa-site .... (20 March 1960) by Leslie Adkin. https://www.rawpixel.com/image/13031069/image-people-sky-oceanFree Image from public domain licenseCascade in Outlet of Surprise Valley, Colorado River. by Charles William Carter https://www.rawpixel.com/image/14289264/cascade-outlet-surprise-valley-colorado-river-charles-william-carterFree Image from public domain licenseFriant Dam, Central Valley Reclamation Project, Calif. View from the left side of the downstream face of the spillway… https://www.rawpixel.com/image/12287883/photo-image-face-sky-waterFree Image from public domain license