https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/11071861Edit ImageSaveSaveEditCropCustom TextLichens Humboldt Toiyabe NF Sierra SampsonVarious types of Lichen cling to the rock, over an oversweeping landscape views. USDA Forest Service photo by Sierra Sampson.Original public domain image from FlickrMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 900 px | 300 dpiLarge JPEG 2016 x 1512 px | 300 dpiFree DownloadLichens Humboldt Toiyabe NF Sierra SampsonVarious types of Lichen cling to the rock, over an oversweeping landscape views. USDA Forest Service photo by Sierra Sampson.More