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I agree.The Leach Plant at American Potash. American Potash and Chemical Company operaterated in the United States from the 1920's through the 1960's.
pho028753. Dennis McBride Photograph Collection, approximately 1900-2018. PH-00263. Special Collections and Archives, University Libraries, University of Nevada, Las Vegas. Las Vegas, Nevada. http://n2t.net/ark:/62930/d17659r50