![](http://www.alamy.com/thumbs/6/E4DA4534-73FE-4787-990C-59AC96D28785/D5FMD9.jpg)
Pennsylvania iron ore docks, unloading ore from a lake freighter by means of "Hulett" ore unloaders (LOC)
Size: 1248px × 1603px
Photo credit: © PF-(bygone1) / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 20th, 20thcentury, archive, century, cleveland, congress, dc:identifier=, dc:identifier=httphdllocgovlocpnpfsac1a34838, great, greatlakes, historic, history, hulett, industry, lakes, library, libraryofcongress, ocean, oil, oilrig, photograph, rig, ship, vintage, xmlns:dc=, xmlns:dc=httppurlorgdcelements11