U. S. GEOLOGICAL SURVEY 



BULLETIN 707 PLATE XCVI 



A. MAGNA MILL OF THE UTAH COPPER CO. 



The Magna mill, at the north end of the Oquirrh Mountains, was built to concentrate a part of 

 the copper ore mined at Bingham. It treats more than 10,000 tons of ore daily. Above the 

 mill may be seen some of the terraces of old Lake Bonneville; the uppermost is the Bonneville 

 shore line. Photograph by Shiplers, Salt Lake City. 



B. BONNEVILLE SHORE LINE ON WASATCH MOUNTAINS. 



Near view of the west face of the Wasatch Mountains showing the horizontal band across the moun- 

 tain front that looks like a well-graded road. This is the beach cut by the waves of Lake Bonne- 

 ville when it stood 1,000 feet higher than the water stands to-day in Great Salt Lake. Photograph 

 by Shiplers, Salt Lake City. 



