Excerpt from Quarterly of the Colorado School of Mines, Vol. 13 At the Globe plant of the American Smelting and Refining Company in Denver the treatment of lead ores and dry ores of gold and silver is illustrated. Here also the many mining and metallurgical machinery plants afford an excellent opportunity for the study of recent improvements in metallurgical design. West of Colorado Springs are located the Portland, the Standard, and'the Golden Cycle Mills, which treat ore from the Cripple Creek district. Farther west are the prominent camps of Victor and Cripple Creek, in which are located some of the famous gold mines of the world. Near Victor are the well known Independence, the Portland, and the Ajax Mills, where low-grade Cripple Creek ores are successfully treated. The plant of the Colorado Fuel and Iron Company, at Pueblo, possesses all the recently invented and approved devices for the production of iron and steel and for the working of these products into marketable forms. At Pueblo are located the Pueblo lead smeltery and the zinc smeltery of the Colorado Zinc Company. At Florence the Union Mill is located. At Canon City is the plant of the Empire Zinc Company. The Ohio and Colorado smeltery is located at Salida, and the Arkansas Valley smeltery at Leadville. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.