https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/4038670Edit ImageSaveSaveEditCropCustom TextWest ThumbThe water level in many of the pools of the West Thumb Geyser Basin appears to have dropped since Jackson first photographed them in August 1871 by Bradly J. Boner Original public domain image from FlickrMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 914 px | 300 dpiLarge JPEG 3243 x 2471 px | 300 dpiFree DownloadWest ThumbThe water level in many of the pools of the West Thumb Geyser Basin appears to have dropped since Jackson first photographed them in August 1871 by Bradly J. Boner Original public domain image from FlickrMore