||Youngstown Steel - Iroquois Iron Company Cold Air Tunnel
||South Chicago IL. Main cold air tunnel below stoves lined with fire brick for heavy foundations for the Iroquois Iron Company's new Furnace Plant. Page 67 from Great Lakes Dredge & Dock Company book.
||SCH_Waterways,_Calumet_River; Youngstown_Sheet_and_Tube_Company; Iroquois_Iron_and_Steel_Company; SCH_East_Side;
||1616; http://www.pullman-museum.org/cgi-bin/pvm/mainRecordDisplayXML.pl?recordid=10509; 82-218-p67
||The Industrial Heritage Archives provides reproductions of items from its collections for personal or research use. If an image is to be reproduced in any type of publication or on the web, written permission is required and use fees may be assessed.
||Southeast Chicago Historical Society