The Braden Copper Company, another Guggenheim interest, owns about 2300 acres in the Province of O’Higgins. They have a concentrator, a smelting and converting plant, a hydro-electric power plant with 800 kilowatt capacity and an electric and a steam railway; the latter, 43 miles long, connecting the property with Rancagua, which is on the Central Railway 43 miles southeast of Santiago. The ore is of concentrating copper, a sulphide in brecciated andesite, around an extinct volcano. It runs about 2.5 per cent, with an earlier production cost in New York of 6.5 cents a pound, but now higher. In 1916, 1500-1800 men were employed. The plant, recently enlarged, is not working to capacity. In 1917, 64,000,000 pounds were produced, over 77,000,000 in 1918, with diminishing demand, 40,000,000 in 1920. Another American syndicate has acquired the Tamaya Copper Mines in the Province of Coquimbo between Ovalle and Tongoy, the latter, a minor port 27 miles south of Coquimbo, sheltered from north winds, with smelting works in the place. With an efficient pumping plant and other improvements installed, the mines are expected to yield large production. Other companies, native, British, and French are engaged in copper mining at Carrizal and elsewhere. =Iron.= Coquimbo, a Province with local importance for agriculture, is notable for its deposits of iron ore, said to amount to a billion tons. Only one of these has been worked, a deposit located at Tofo, about four miles east of Cruz Grande, and 30 north of the city of Coquimbo. This property was leased in 1913 by the Bethlehem Steel Company from a French Company which had developed the mine to some extent and produced ore. The ore appearing as the top of a large hill will be mined by electric shovels and transported by an electric railway to docks at Cruz Grande. The amount of ore is very large though with exact tonnage undetermined. The Company is still exploring the deposit at depth. The mines and railway are completely equipped. At Cruz Grande a basin dock has been constructed with large storage pockets into which the ore will be discharged from the railway cars, and from which it will go directly into the vessels. The Steel Company is constructing steamers of 20,000 tons to carry the ore to the United States for use in their furnaces. The ore is very pure averaging about 67.50 per cent iron. It is a dense ore reddish black in color, a mixture of magnetite and hematite. The French Company formerly controlling Tofo had erected a steel plant at Corral intending to transport the ore thither. There is no iron ore near there and the plant is not operating. Of the other deposits in Coquimbo and farther north some are of considerable size, but none is located so near the coast as Tofo and none has been developed.