https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12286399Edit ImageSaveSaveEditCropCustom TextExamining soil from bored well hole. The boring continues until water bearing sand is reached. Safe well demonstration, Ridge, Saint Mary's County, Maryland. Sourced from the Library of Congress.View public domain image source hereMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFSmall JPEG 1141 x 1200 px | 300 dpiLarge JPEG 3329 x 3500 px | 300 dpiBest Quality JPEG 4965 x 5220 px | 300 dpiTIFF 4965 x 5220 px | 300 dpi | 49.43 MBFree DownloadExamining soil from bored well hole. The boring continues until water bearing sand is reached. Safe well demonstration, Ridge, Saint Mary's County, Maryland. Sourced from the Library of Congress.More