https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13986674Edit ImageSaveSaveEditCropCustom TextA Central Pacific railway track running through an area called Red Rock (Nevada). Photograph, ca. 1880.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 960 px | 300 dpiLarge JPEG 2953 x 2363 px | 300 dpiFree DownloadA Central Pacific railway track running through an area called Red Rock (Nevada). Photograph, ca. 1880.More