https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13966105Edit ImageSaveSaveEditCropCustom TextGeography: rapids in North America. Coloured wood engraving by C. Whymper.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 979 px | 300 dpiLarge JPEG 2850 x 2325 px | 300 dpiFree DownloadGeography: rapids in North America. Coloured wood engraving by C. Whymper.More