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<br />ooonn8 <br /> <br />Photo by USBR <br /> <br /> <br /> <br />HEART MOUNTAIN POWER PLANT, May, 1947, Contract awarded in August, 1946, <br />Photo by USBR <br /> <br />" <br /> <br /> <br />.' ~~"- <br />HEART MOUNTAIN POWER PLANT, June, 1948, <br />