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Excerpts from California Mining Journal, our original title, published 50 years ago this month.

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The Montezuma Quadrangle, Summit County, Colorado


The Montezuma mining district of Summit County, Colorado, is a rugged, structurally complex area of the Rocky Mountains. Home to the first silver claim in Colorado, the Montezuma district hosts stockwork gold deposits, disseminated molybdenum, and abundant silver-bismuth veins.

New Mine from Century-Old Gold-Silver Bonanza


It has been a ten-year project to make a new mine from the abandoned 100-year-old mine deep in the Sierra Madre at Dolores, Chihuahua, but the perseverance of Minefinders Corp. is soon to pay off. Once worked by the Mexicans, then...

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Looking Back


Excerpts from California Mining Journal, our original title, published 50 years ago this month.

The Tangential Impulse Water Wheel in California Gold Mining History—Part II


Even before Pelton relocated in San Francisco in 1888, many other competitive foundries and machine shops chose to enter the water wheel market. These firms were already busy with the mining trade, producing hoists, stamp mills, ore carts, Cornish pumps, crushers, grinders, compressors and drills.

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