https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12284906Edit ImageSaveSaveEditCropCustom TextGreat Northern ore docks at Allouez, Wisconsin. These are the largest and most modern in the world. 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 1200 x 931 px | 300 dpiLarge JPEG 3500 x 2717 px | 300 dpiBest Quality JPEG 13738 x 10664 px | 300 dpiTIFF 13738 x 10664 px | 300 dpi | 139.74 MBFree DownloadGreat Northern ore docks at Allouez, Wisconsin. These are the largest and most modern in the world. Sourced from the Library of Congress.More