https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/4043072Edit ImageSaveSaveEditCropCustom TextA large clamshell is being lowered off the aft deck of the Bold, to collect a sediment grab sample at the bottom. US EPA photo by Eric Vance. Original public domain image from FlickrMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseJPEGBanner JPEG 1200 x 797 px | 300 dpiLarge JPEG 1600 x 1063 px | 300 dpiFree DownloadA large clamshell is being lowered off the aft deck of the Bold, to collect a sediment grab sample at the bottom. US EPA photo by Eric Vance. Original public domain image from FlickrMore